ZeckaBeethoven ZeckaBeethoven 10-09-2021 Mathematics contestada Directions:Simplify the following monomials.6.) 4ab + 13bc7.) -5a²b² - a²b²8.) 8x² - x² - 12x² + 2x²9.) 16x²y - 4xy² - 5x²y + 10xy²10.) Subtract -2x from -8xANYONE 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!