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x2-7x-30

MathsMia  Apr 24, 2017
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 #1
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+3

x^2-7x-30=(x+3)(x-10)

Guest Apr 24, 2017
 #2
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+3

(x-10)(x+3)

Doboman  Apr 24, 2017
 #3
avatar+189 
+3

x^2 - 7x - 30

a = 1      b = 7      c = 30

a x c = ?

1 x -30 = -30

factors of -30 that could equal, if you add them, -7

in this case it is -10 and 3

(x+3) (x + 10)

Snappingtunic99  Apr 24, 2017

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