Question

Expand the following questions
(¼a-½b+1)²

Answer 1

Answer:

= 1/16a^2+1/4b^2-1/4ab-1b+1/2a

Step-by-step explanation:

(1/4a-1/2b+1)^2

we will use the formula (a-b+c)^2=a^2+b^2+c^2-2ab-2bc+2ca

= (1/4a)^2+(-1/2b)^2+(1)^2+2*1/4*(-1/2)+2*(-1/2)*1+2*1/4*1

= 1/16a^2+1/4b^2+1-2/8ab-2/2b+2/4a

= 1/16a^2+1/4b^2+1-1/4ab-1b+1/2a

Hope it helps you