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Mathematics 7 Online
OpenStudy (roselol2001):

(56*19)^3

OpenStudy (unklerhaukus):

(56*19)^3 = ( 56 * (20-1) )^3 = ( 56 * 20 - 56 )^3 = = =

OpenStudy (roselol2001):

im lost

OpenStudy (unklerhaukus):

56 * 20 = 56 * 2 * 10

OpenStudy (unklerhaukus):

= ( 50 * 2 + 6 * 2) * 10

OpenStudy (roselol2001):

ugh

undeadknight26 (undeadknight26):

Break it down. Do you have a calculator near by?

undeadknight26 (undeadknight26):

If so do 59 * 19. After you find the answer take the answer and do x * x * x. (x symbolizes the answer for 59 *19)

OpenStudy (unklerhaukus):

(56*19)^3 = ( 56 * (20-1) )^3 = ( 56 * 20 - 56 )^3 = (1120 - 56)^3 = 1064^3 = (10^3+64)^3 = (10^3+2^6)^3 = (10^3+2^6)(10^3+2^6)^2 = (10^3+2^6)(10^6+2*2^6*10^3+2^12) = =

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