Jul 24, 2015 · =color(blue)(2sqrt2 Here we prime factorise 8 in order to simplify the expression: sqrt8=sqrt(2*2*2) =sqrt(2^2*2 =color(blue)(2sqrt2

Apr 22, 2018 · sqrt(8) ~~ 3 Note that: 2^2 = 4 < 8 < 9 = 3^2 Hence the (positive) square root of 8 is somewhere between 2 and 3. Since 8 is much closer to 9 = 3^2 than 4 = 2^2, we can deduce that the closest integer to the square root is 3. We can use this proximity of the square root of 8 to 3 to derive an efficient method for finding approximations. Consider a quadratic with zeros 3+sqrt(8) and 3-sqrt(8 ...

Mar 18, 2018 · See a solution process below: sqrt(8) can be rewritten as: sqrt(4 * 2 * -1) We can use this rule for ...

Mar 26, 2015 · sqrt8=sqrt(4*2)=sqrt4*sqrt2=2sqrt2. Algebra Properties of Real Numbers Square Roots and Irrational Numbers

Mar 26, 2015 · I don't know whether you mean sqrt(8^3) or sqrt8^3. The good news is: it doesn't matter, they are equal. There is only only number here, but there are several ways to write it and several ways to get to the "simplist form" of 16sqrt2 sqrt(8^3)=sqrt(8*8*8)=sqrt(8^2*8)=sqrt8^2*sqrt8=8sqrt8 Now, sqrt8=sqrt(4*2)=sqrt4*sqrt2=2sqrt2 so we can continue: sqrt(8^3)=8sqrt8=8sqrt(4*2)=8sqrt4*sqrt2=8*(2 ...

Mar 24, 2018 · 3sqrt(8) is 6sqrt(2) ~~ 8.49. 3sqrt(8) =3sqrt(4*2) =3*sqrt(4)*sqrt(2) =3*2sqrt(2) =6sqrt(2) ~~8.49

The square root of 8, which is 2.82842712474619, is not a rational number. It is an irrational number. A rational number is one that can be written...

Sep 9, 2015 · #sqrt(8) = sqrt(2^2xx2) = sqrt(2^2)*sqrt(2) = 2sqrt(2)# #sqrt(32) = sqrt(4^2xx2) =sqrt(4^2)*sqrt(2) = 4sqrt(2)#

Jul 22, 2018 · Let , #x=sqrt(-8)...tox!inRR, but , x in CC# Squaring both sides. #x^2=-8=8(-1)# #:.x^2=8i^2 to[because i^2=-1]# ...

Mar 5, 2018 · See explanation. sqrt(50)+sqrt(8)=sqrt(2*25)+sqrt(2*4)=5sqrt(2)+2sqrt(2)=7sqrt(2)