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Earn +20 ptsQ: Factorise x2 plus 8x plus 15?
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How do you factor x2 plus 8x plus 15?
x2 + 8x + 15 = (x + 3) (x + 5).
Vertex of x2 plus 8x plus 15?
(-4,-1)
How do you factorise x2 8x-48?
If you mean: xsquared+8x-48 then it factors to (x-4)(x+12)
The factors of x2-8x plus 15 are?
(x - 3)(x - 5)
Factor X2 plus 8x equals -15?
x2 + 8x = -15 x2 + 8x + 15 = 0 since 15 = 5 x 3 and 5 + 3 = 8, then (x + 5)(x + 3) = 0 x + 5 = 0 or x + 3 = 0 x = -5 or x = -3
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