Help with trinomials ?!?
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Answer:
first question 2x^2 - 7x -39 can be re-written as: 2x^2 - 13x + 6x - 39 2x(x + 3) -13(x + 3) (2x - 13)(x +3) This is the the factorised form Second Question 6x^2 +11x - 10 can be re-written as: 6x2 + 15x - 4x - 10 2x(3x - 2) + 5(3x - 2) (2x + 5)(3x - 2) This is the the factorised form
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Other answers
first question 2x^2 - 7x -39 can be re-written as: 2x^2 - 13x + 6x - 39 2x(x + 3) -13(x + 3) (2x - 13)(x +3) This is the the factorised form Second Question 6x^2 +11x - 10 can be re-written as: 6x2 + 15x - 4x - 10 2x(3x - 2) + 5(3x - 2) (2x + 5)(3x - 2) This is the the factorised form
witty
2x² - 7x - 39 = 0 2x² + 6x - 13x - 39 = 0 2x(x + 3) - 13 (x + 3) = 0 (2x - 13)(x + 3) = 0 ~~~~~~~~~~~~~~~ 6x² + 11x - 10 = 0 6x² - 4x + 15x - 10 = 0 2x(3x - 2) + 5(3x - 2) = 0 (2x + 5)(3x - 2) = 0
Alessandro
2x² - 7x - 39 = 0 2x² + 6x - 13x - 39 = 0 2x(x + 3) - 13 (x + 3) = 0 (2x - 13)(x + 3) = 0 ~~~~~~~~~~~~~~~ 6x² + 11x - 10 = 0 6x² - 4x + 15x - 10 = 0 2x(3x - 2) + 5(3x - 2) = 0 (2x + 5)(3x - 2) = 0
Alessandro
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