How do you simplify #4\sqrt{2}+5\sqrt{7}-9\sqrt{2}+4\sqrt{7}#?
1 Answer
Oct 10, 2017
#-5sqrt2+9sqrt7#
Explanation:
Given -
#4sqrt2+5sqrt7-9sqrt2+4sqrt7#
#4sqrt2-9sqrt2+5sqrt7+4sqrt7#
#sqrt2(4-9)+sqrt7(5+4)#
#sqrt2(-5)+sqrt7(9)#
#-5sqrt2+9sqrt7#
