Question #423d5
↳Redirected from
"Question #f98b4"
1 Answer
Nov 28, 2017
Explanation:
#20 1/4=81/4#
#rArrsqrt(20 1/4)=sqrt(81/4)#
#rArrsqrt(81/4)=+-9/2larrcolor(blue)"note plus or minus"#
#[9/2xx9/2=81/4" and "-9/2xx-9/2=81/4]#
