Question

Multiply x3(x4 + 5a)​

Answer 1

${x}^{3} ( {x}^{4} + 5a) \\ = ( {x}^{4 + 3} ) \times 5a {x}^{3} \\ = {x}^{7} \times 5a {x}^{3}\\=5a{x}^{10}$