Question

if one of the roots quadratic equation are 4 and -5 then form the quadratic equation​

Answer 1

Answer:

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Answer 2

Answer:

$\huge\tt\orange{Answer:-}$

$let \\ \: \: \: \: \alpha = 4 \\ \: \: \: \: \beta = - 5 \\ \\ now \\ \alpha + \beta = 4 + ( - 5) = - 1 \\ \\ \alpha \times \beta = 4 \times ( - 5) = - 20$

The quadratic equation which root are

$\alpha \: and \: \beta \: is \\ \\ {x}^{2} - ( \alpha + \beta )x + \alpha \beta = 0 \\ {x}^{2} - ( - 1)x \: + ( - 20) = 0 \\ {x}^{2} + 1x - 20 = 0$