Respuesta :

JVascoe
First start with x and multiply it by each variable in the second parentheses. So x^2 * x = x^3 and x * -3x = -3x^2. Do the same but with 5 next. 5 * x^2 = 5x^2 and 5 * - 3x = -15x. Then add them all together to get x^3 +2x^2 - 15x.
tiffinimichelle

Answer:

x3 + 2x^2 - 15

Step-by-step explanation:

So, we get:

= x * x^2 - x * 3x +  5 * x^2 - 5 * 3x

= x^3 - 3x^2 + 5x^2 - 15x

= x^3 + 2x^2 - 15

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