Question #101ce

2 Answers
Sep 18, 2017

#7sqrt2#

Explanation:

#98# is the same as #7^2*2# which is the same as #sqrt(7^2*2)#.
We will pull the #7# out to the side of #sqrt# so the equation will be #7sqrt2#.

Sep 18, 2017

#7sqrt2#

Explanation:

#"using the "color(blue)"law of radicals"#

#•color(white)(x)sqrtaxxsqrtbhArrsqrt(ab)#

#rArrsqrt98=sqrt(49xx2)#

#color(white)(xxxxx)=sqrt49xxsqrt2#

#color(white)(xxxxx)=7sqrt2#