How do you simplify 5 the square root of 8 • 4 the square root of 7?
1 Answer
Apr 11, 2018
Explanation:
#"using the "color(blue)"law of radicals"#
#•color(white)(x)sqrtaxxsqrtbhArrsqrt(ab)#
#rArrsqrt8=sqrt(4xx2)=sqrt4xxsqrt2=2sqrt2#
#sqrt7" does not simplify"#
#rArr5xxsqrt8xx4xxsqrt7#
#=5xx2xxsqrt2xx4xxsqrt7#
#=(5xx2xx4)xxsqrt2xxsqrt7#
#=40sqrt14#
