We're Learning About This Rn So I Was Happy To Do Math For Once - Blog Posts

stellathyst

1 month ago

obviously one of the things has to have a negative sign. 5x + 8x don't make 3x. BUT... 8x - 5x is 3x. So we know which one has the negative sign in the factor.

then you fill in the boxes...

the equation would be x² + 8x - 5x - 40 when simplified (by combining like terms) , it gives the original equation. the terms on the top and side are (x + 8) and (x - 5) so the answer is (x + 5)(x - 5) after being factored :)

x² - 3x - 40

factor the polynomial

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