Question

(1/2-b)^2
Ajutati-ma va rog ..

Answer 1

$( \frac{1}{2}-b) ^{2} =( \frac{1}{2} ) ^{2} -2* \frac{1}{2} *b+b ^{2}= \frac{1}{4} -1+ b^{2} =- \frac{3}{4} + b^{2}$