Simplify this expression. 9x (5x2)

A) 14x2

B) 14x3

C) 45x2

D) 45x3

The answer is:D)

Move xx. 9 (5 (x x2)) 9⁢ 5⁢ x⁢ x2 Use the power rule am an = a m+n am ⁢ an = a m+n to combine exponents. 9 (5 x 1+2) 9⁢ 5⁢ x 1+2 Add 11 and 22 to get 33. 9 (5 x3) 9⁢ 5⁢ x3 Multiply 55 by 99 to get 4545. 45 x 3