nolegirl24:

What is the product of Seven square root eight times four square root five? Simplify your answer. Twenty eight radical ten Fifty six radical two Fifty six radical ten Two hundred eighty radical four

1 year ago
Vocaloid:

first you would just multiply the square root parts together

1 year ago
mikewwe13:

7√8*4√5 =

1 year ago
Vocaloid:

sqrt(A) * sqrt(B) = sqrt(A*B) sqrt(8) * sqrt(5) = ?

1 year ago
nolegirl24:

40?

1 year ago
nolegirl24:

Wait what?!?!?

1 year ago
Vocaloid:

good, sqrt(40) now we just multiply the non-radical parts to get 7 * 4 = 28

1 year ago
Vocaloid:

now we go back to our sqrt(40) and see if we can factor out any perfect squares

1 year ago
Vocaloid:

40 = 4*10 sqrt(40) = sqrt(4)*sqrt(10) sqrt(4) = ?

1 year ago
nolegirl24:

square root of 4 is 2

1 year ago
Vocaloid:

good, so sqrt(40) = sqrt(4)*sqrt(10) = 2*sqrt(10) so let's put everything together 28* 2*sqrt(10) = 56sqrt(10) = C

1 year ago