Question

This Question: 1 pt

A triangle has a perimeter of 9x² + 7x - 2.
One side of the triangle measures 6x + 7. Another side of the triangle measures 8x?.
What is the measure of the third side of the triangle?

Answer 1

9x² - 7x - 9

Explanation:

Two sides

(6x + 7) + 8x = 14x + 7

total perimeter - two sides = Third side

9x² + 7x - 2

- (14x + 7)

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9x² - 7x - 9