Question

A rectangle has a height of 7a² and a width of a4 + 5a2 + 4.

Answer 1

Answer:

$( {7a}^{2} \times {a}^{4} ) + ({7a}^{2} \times {5a}^{3}) + ( {7a}^{2} \times 4) = {7a}^{6} + {35a}^{5} + {28a}^{2}$