Question

Can somebody help me please

Answer 1

f(4) = 122

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Calculate

`Substitute\ x=4\ into\\ f(x)=7x^2+4x-6`

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Substitute

`f(4)=7* 4^2+4* 4-6`

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Calculate the power

`f(4)=7* 16+4* 4-6`

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Calculate the product or quotient

`f(4)=112+4* 4-6\\ f(4)=112+16-6`

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Calculate the sum or difference

`f(4)=128-6\\ f(4)=122`

I hope this helps you

:)