Question

expand (1/2a-1/4b+2)²​

Answer 1

answer....

step by step explanation

Answer 2

Step-by-step explanation:

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${( \frac{1}{2}a - \frac{1}{4}b + 2)}^{2}$

$= {( \frac{1}{2}a )}^{2} + {( \frac{ - 1}{4} b)}^{2} + {(2)}^{2} [+ 2( \frac{1}{2} a)( \frac{ - 1}{4} b) + 2 (\frac{ - 1}{4}b )(2) + 2(2)( \frac{1}{2} a)]$

$={ \frac{1}{4}a }^{2} + { \frac{1}{16} b}^{2} + 4 - \frac{ 1}{4} ab - b + 2a$

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