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OpenStudy (anonymous):
How to factor this? 7x3 + 56 Thank you!
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OpenStudy (samanthagreer):
7(x^3 - 8) There is a formula for this, it's called the difference of cubes a^3 - b^3 = ( a - b ) ( a^2 + ab + b^2 ) Is is obviously x and you should know that 2^3 = 8 so just plug that in 7(x - 2) (x^2 + 2x +4)
OpenStudy (anonymous):
Thank you so much, @samanthagreer !
OpenStudy (samanthagreer):
can i have a medal please np
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