Question

$find \: the \: zero \: of \: polynomial \: 2 x^2 + 7 - 4 \: is$

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Answer 1

Answer:

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Answer 2

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Q1) Find the zero of polynomial 2x²+7x-4

is :

$\sf{\underline{\underline{\large{\bold{Answer:-}}}}}$

$\: \: \dashrightarrow \displaystyle \rm{2 {x}^{2} + 7x - 4 }$

$\: \: \dashrightarrow \displaystyle \rm{2 {x}^{2} + 8x - x - 4 = 0}$

$\: \dashrightarrow \displaystyle \rm{2x(x + 4) - 1(x + 4) = 0}$

$\: \dashrightarrow \displaystyle \rm{(x + 4)(2x - 1) = 0}$

$\: \: \\ \dashrightarrow \displaystyle \rm{x = - 4 \: and \: x = \frac{1}{2} are \: the \: solutions}$