Question

Prove que (2 - 5/2)^2 = (3 - 5/2)^2

Prove que (a + b)^2 = (-a - b)^2

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Answer 1

a)(2-5/2)^2=(3-5/2)^2
(4-5/2)^2=(6-5/2)^2
(-1/2)^2=(1/2)^2
1/4=1/4

b)(a+b)^2=(-a-b)^2
a^2+2ab+b^2=(-a)^2-2(-a)+b^2
a^2+2ab+b^2=a^2-2ab+b^2.
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