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Factorise 3 X square + X - 45 |
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Answer» 3x^2+x−45Step-by-step explanation:The FIRST term is, 3x2 its coefficient is 3 .The middle term is, +x its coefficient is 1 .The last term, "the constant", is -45 Step-1 : Multiply the coefficient of the first term by the constant 3 • -45 = -135 Step-2 : Find two factors of -135 whose SUM equals the coefficient of the middle term, which is 1 .-135 + 1 = -134 -45 + 3 = -42 -27 + 5 = -22 -15 + 9 = -6 -9 + 15 = 6 -5 + 27 = 22 -3 + 45 = 42 -1 + 135 = 134 BRAINLIEST:PLz mark as brainliest |
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