Question

find the value of each expression for the given value of the variable 5x square+ 2x minus 2 - 7, when x = -2​

Answer 1

Answer:

3 - 4 - 5

rewrite as,

-3 + (-4) + (-5)

= - 12

PS this is an expression, not an equation

Answer 2

Answer:

9

Step-by-step explanation:

$f(x) = 5 {x}^{2} + 2x - 7$

$f( - 2) = 5 {( - 2)}^{2} + 2( - 2) - 7$

$= 20 - 4 - 7$

$= 9$

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