Question

Solve (3x + 5)(3x + 11) using suitable identity

Answer 1

Answer:

using (x+a )(x+b)= x^2+(a-b)x+ab

(3x + 5)(3x + 11) =

${3x}^{2} \: + 5 - 11 \times 3x + 5 \times 11$