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Factorise: x² + x+ 4. |
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Answer» The first term is, x2 its coefficient is 1 .The MIDDLE term is, +x its coefficient is 1 .The last term, "the constant", is +4 Step-1 : Multiply the coefficient of the first term by the constant 1 • 4 = 4 Step-2 : Find two FACTORS of 4 whose sum EQUALS the coefficient of the middle term, which is 1 . -4 + -1 = -5 -2 + -2 = -4 -1 + -4 = -5 1 + 4 = 5 2 + 2 = 4 4 + 1 = 5Step-by-step EXPLANATION:Observation : No two such factors can be found !!CONCLUSION : Trinomial can not be factored |
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