use suitable identities to find the following products
1) (3x + 2)(3x - 2)
2) (1+x) (1 + x)
Answers
Answered by
1
Answer:
1) (9x^2-4) 2) 1+2x+x^2
Step-by-step explanation:
1) (a+b)(a-b) = a^2 - b^2
2) (a+b)(a+b) = (a+b)^2
(a+b)^2 = a^2 + b^2+2ab
Answered by
1
Answer:
Step-by-step explanation:
1. (3x+2)(3x-2)
Identity used :- a^2 - b^2 = (a+b)(a-b)
(3x)^2 - (2)^2
9x^2 - 4
2. (1+X)(1+X)
Identity used :- (a+b)^2 = a^2 + b^2 + 2ab
(1)^2 + (X)^2 + 2(1)(x)
1 + x^2 + 2x
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