Directions:Simplify the following monomials.
6.) 4ab + 13bc
7.) -5a²b² - a²b²
8.) 8x² - x² - 12x² + 2x²
9.) 16x²y - 4xy² - 5x²y + 10xy²
10.) Subtract -2x from -8x
ANYONE PLEASE HELP ME I REALLY NEED THE ANSWER RIGHT NOW BECAUSE I HAVE TO PASS THIS TOMORROW MORNING AT MY 1ST CLASS I HOPE Y'ALL CAN HELP ME:(
I'LL MARK YOU AS THE BRAINLIEST!