Question

Solve the following

a) 4yz( z²-10z+25) ÷ 2y (z-5)

b) ( 4m-5n)² + ( 4m+5n)²​

Answer 1

$i)2z ^{2} - 10z$

$ii)32m ^{2} + 50n ^{2}$

Answer 2

Answer:

b)

$32m { }^{2} + 50n {}^{2}$