If $x = 4$ $x = 4$ what is the va|ue of: $2 x^{2} - 5$ $2x^2 - 5$ ?

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Answer 1 · 2015-12-19T20:16:43

The answer is 27.

Substitute 4 for $x$ $x$ in the equation.

$2 (4^{2}) - 5$ $2(4^2)-5$

Simplify.

$2 (16) - 5$ $2(16)-5$

Simplify.

$32 - 5 = 27$ $32-5=27$

If x=4 x = 4 what is the va|ue of: 2x2−52x^2 - 5?