What is the square root of 98 minus, square root of 24 plus the square root of 32?

3 Answers
May 21, 2018

11*sqrt(2)-2*sqrt(6)11226

Explanation:

sqrt(98)=sqrt(2*49)=sqrt(2)*798=249=27
sqrt(24)=sqrt(6*4)=2sqrt(6)24=64=26
sqrt(32)=sqrt(2*16)=4*sqrt(2)32=216=42

May 21, 2018

11sqrt(2)-2sqrt(6)11226

Explanation:

sqrt(98) = sqrt(2xx7xx7)=7sqrt(2)98=2×7×7=72
sqrt(24) = sqrt(2xx2xx2xx3)=2sqrt(6)24=2×2×2×3=26
sqrt(32) = sqrt(2xx2xx2xx2xx2)=4sqrt(2)32=2×2×2×2×2=42

7sqrt(2)-2sqrt(6)+4sqrt(2)=11sqrt(2)-2sqrt(6)7226+42=11226

May 21, 2018

11sqrt2-2sqrt611226

Explanation:

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

•color(white)(x)sqrtaxxsqrtbhArrsqrt(ab)xa×bab

"simplifying each radical gives"simplifying each radical gives

sqrt98=sqrt(49xx2)=sqrt49xxsqrt2=7sqrt298=49×2=49×2=72

sqrt24=sqrt(4xx6)=sqrt4xxsqrt6=2sqrt624=4×6=4×6=26

sqrt32=sqrt(16xx2)=sqrt16xxsqrt2=4sqrt232=16×2=16×2=42

rArrsqrt98-sqrt24+sqrt329824+32

=color(blue)(7sqrt2)-2sqrt6color(blue)(+4sqrt2)=7226+42

=11sqrt2-2sqrt6=11226