Question

which of the following equation has root 3 and 5?​

Answer 1

$let \: \alpha = 3 \\ \beta = 5 \\ \alpha \beta = \frac{c}{a} \\ here \sf\red{ \: a = 1 } \\ \sf\red{ c = 15}$

$\alpha + \beta = - b \div a \\ 3 + 5 = - b \div a \\ 8 = - b \div a$

$\sf\green{here \: a = 1 \: and \: b \: = - 8 }$

Put all these value in General equations

$ax²+by+c =0$

$\;\large{\boxed{\bf{\pink{ \: 1x {}^{2} - 8y + 15 = 0 \: is \: the \: answer}}}}$

$\sf\blue{hope \: this \: helps \: you!! \: }$

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