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plzzz help me to solve this question by factorisation the answer to this question is x = 9/7 , x = -3/2 |
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Answer» Step-by-step EXPLANATION: Given equation is 7x² + 1.5x - 13.5 = 0 Now multiply it on both sides with 10 => 70x² + 15x - 135 = 0 => 5(14x² + 3x - 27) = 0 => 14x² + 3x - 27 = 0 => 14x² + (21x - 18X) - 27 = 0 => 14x² + 21x - 18x - 27 = 0 => 7x(2x + 3) - 9(2x + 3) = 0 => (7x - 9)(2x + 3) = 0 Case (i) => 7x - 9 = 0 => 7x = 9 => x = 9/7 Case (ii) => 2x + 3 = 0 => 2x = -3 => x = -3/2 Please mark as Brainliest if you like the explanation |
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