Question

expansion of (4a-3b)² is? how to solve

Answer 1

Ahoy,

${(4a - 3b)}^{2}$

=> 4a^2 +3b^2 -2×4a×3b

=>16a^2+9b^2 - 24ab

Identity used:-

${(a - b)}^{2} = {a}^{2} + {b}^{2} - 2ab$

cheers

Answer 2

Given Equation is (4a - 3b)^2.

It is in the form of (a - b)^2 = a^2 + b^2 - 2ab

= > (4a)^2 + (3b)^2 - 2(4a)(3b)

= > 16a^2 + 9b^2 - 24ab.

Hope this helps!