Solve by factorization 8x2 - 22x - 21 = 0.
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Step-by-step explanation:
we will multiply the coefficient of x^2 by 21
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Answer:
8x^2 -22x -21 = 0
8x^2 +6x -28x -21 =0
2x (4x +3)-7 (4x+3) =0
(4x +3)(2x -7)
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