Question

Write in expanded form :
$( \frac{1}{4} a - \frac{1}{2} b + 1) {2}$
pls. guice solve and give answer fast ..... i will mark as brainlist pls. solve it faassssssttttt..​

Answer 1

Answer:

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

Step-by-step explanation:

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

using the identity

(a + b + c)² = a² + b² +c² + 2(ab + bc + ca)

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

please mark as brainliest