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(iv) 4x2-25x-21-0 |
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Answer» Solution:x = 7 or x = -3/4 Explanation:Consider the given equation 4x² - 25 x - 21= 0Split the middle term=> 4x² - 28x + 3x - 21= 0Regroup the terms=> 4x(x - 7) + 3(x - 7) = 0=>. (x - 7)(4x + 3) = 0=> x = 7 or x = -3/4 |
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