Question

Simplify 4(5x^2-9x+7)+2(-10^2+18x-13)

Answer 1

4(5x² - 9x + 7) + 2(-10² + 18x - 13)

• Distribute 4 inside the parentheses.

20x² - 36x + 28 + 2(-10² + 18x - 13)

• Find 10 to the power of two.

20x² - 3y6x + 28 + 2(-100 + 18x - 13)

• Combine like terms inside the parentheses (-100 - 13).

20x² - 36x + 28 + 2(-113 + 18x)

• Distribute 2 inside the parentheses.

20x² - 36x + 28 + (-226 + 36x)

• Rewrite as - 226 and + 36x; remove the parentheses.

20x² - 36x + 28 - 226 + 36x

• Combine like terms. The -36x and 36x cancel each other out.

20x² - 198

• is your answer.

Answer 2

The answer is 20x^2 - 198