Solved 1 A B 2 A2 2ab B2 2 A B 2 A2 2ab B2 3 Chegg In our life we have always learnt that (a b)2 = a2 2ab b2. but do you know how this formula is derived? and we always look for some examples related to. 相信只要是上过初中的同学，对于“ (a b)²=a² 2ab b²”这个公式肯定都很熟悉 (不熟悉的请自行请教自己的体育老师)，但是，对于它的原理可能有人会不知道！ 所以，今天给大家介绍下这个公式究竟是怎么来的，同时，还会解释下我们非常熟悉的 勾股定理。 以及这里面蕴含的思想又是什么？ 最关键的不是让大家知道这两个公式的原理，而是掌握这种数学思想，这对于我们的中考以及高考做题都至关重要，可以让我们花更少的时间快速做题，这对于分秒必争的中高考考场来说，至关重要！ 首先，在初中的时候，我们可以将这个公式一般看作两个数的乘法。 分别是： ( a b ) x ( a b ) 然后，挨个相乘再相加就有了如下等式： (a b)²=a² ab ab b².
Solved A B 2 A2 2ab B2 Chegg Identity 1: (a b) 2 = a 2 2ab b 2 [click here for sample questions] this identity is used to calculate the square of the number in a simpler way. in this, the number(n) is divided into two small numbers i.e., a and b which when added gives number n [n= a b]. so, after applying the identity, the square of the number n can be calculated. For all square matrices $a$ and $b$ of the same size, it is true that $(a b)^2 = a^2 2ab b^2$? (2 answers). Algebraic identity (a b) 2 = a 2 2ab b 2 is verified. the identity (a b) 2 = a 2 2ab b 2 is verified by cutting and pasting of paper. this identity can be verified geometrically by taking other values of a and b. divide a square plot into four parts (quadrilaterals) such that two parts have same area and other two are squares. viva voce. Question 2: are (a b)² and a² 2ab b² algebraic expressions? answer: yes, both (a b)² and a² 2ab b² are algebraic expressions because they contain both variables (a and b) and arithmetic operations ( ). question 3: what is the difference between algebraic expression and polynomial? answer:.
Solved 2 A B 2 A2 2ab B2 Chegg Algebraic identity (a b) 2 = a 2 2ab b 2 is verified. the identity (a b) 2 = a 2 2ab b 2 is verified by cutting and pasting of paper. this identity can be verified geometrically by taking other values of a and b. divide a square plot into four parts (quadrilaterals) such that two parts have same area and other two are squares. viva voce. Question 2: are (a b)² and a² 2ab b² algebraic expressions? answer: yes, both (a b)² and a² 2ab b² are algebraic expressions because they contain both variables (a and b) and arithmetic operations ( ). question 3: what is the difference between algebraic expression and polynomial? answer:. When you see a binomial squared, (a b)2, your first thought might be to square each term inside, a2 b2, similar to what we do with radicals. this is incorrect. remember that squaring something is a short hand way to represent that thing being multiplied by itself. This document proves the formula (a b)2 = a2 b2 2ab using both geometric and algebraic approaches. geometrically, it represents a b as a line segment and draws the squares and rectangles that make up (a b)2. algebraically, it expands (a b)2 using the distributive property and collects like terms. Specifically, (a b) 2 generally cannot equal (a 2 b 2), because with (a b) 2, the same thing is being multiplied everywhere (namely, (a b)), while with (a 2 b 2), a and b are being multiplied by different things (namely, a and b respectively). Why (a b) 2 = a2 b2 2ab ? ever wondered how was the above formula derived? probably the answer would be yes and is simple. everybody knows it and when you multiply (a b) with (a b) you will get a plus b whole square. (a b) * (a b) = a2 ab ba b2 = a2 2ab b2. but how did this equation a plus b whole square became generalized.