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

7 months ago
Vocaloid:

first you would just multiply the square root parts together

7 months ago
mikewwe13:

7√8*4√5 =

7 months ago
Vocaloid:

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

7 months ago
nolegirl24:

40?

7 months ago
nolegirl24:

Wait what?!?!?

7 months ago
Vocaloid:

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

7 months ago
Vocaloid:

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

7 months ago
Vocaloid:

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

7 months ago
nolegirl24:

square root of 4 is 2

7 months 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

7 months ago