Question

16. Find the correct identity
(a) (a + b)2 = a² + 2ab +62
(b) (a - b)2= a + 2ab +b?
(c)(a + b)2 = a? - 2ab +b
(d) (a - b) = a + 2ab +b2​ ​

Answer 1

Step-by-step explanation:

(a + b)2 = a2 + 2ab + b2 (recall that 2ab means 2 times a times b). For example 152 = (10 + 5)2 ...(a - b) 2 = a2 - 2ab + b2 For example: 52 = (10 - 5)2 = 102 - (2)(10)(5) + 52 ...(a + b) 2 = (4)(1/2)(a)(b) + c2 ...a2 + 2ab + b2 = 2ab + c2 ...a2 + b2 = c2

Answer 2

Answer:

everything in the options is wrong

Step-by-step explanation:

identity 1 - (a+b)²=a²+2ab+b²

identity 2 - (a-b)²= a²-2ab+b²