I understand some of this but this ones got me stumped i tried pemdas but im still lost

Mathematics

1 answer:

Mandarinka [93]3 years ago

6 0

Just replace $x$ with its given value:

$9x^{2}-4x-3~~~~\text{where }x=-2\\ \\ \\ 9\cdot (-2)^{2}-4\cdot (-2)-3\\ \\ =9\cdot 4+8-3\\ \\ =36+8-3\\ \\ =41$

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