Question

Solve the following equations by using suitable
identify

$(5 - 4y) {}^{2}$
​

Answer 1

Answer:

25-40y+16y2

Step-by-step explanation:

we know that

(a-b) 2=a2-2ab+b2

(5-4y)2=(5)2-2x5x4y+(4y)2

=25-40y+16y2