Answer:
f(4) = 122
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Calculate
[tex]Substitute\ x=4\ into\\ f(x)=7x^2+4x-6[/tex]
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Substitute
[tex]f(4)=7\times 4^2+4\times 4-6[/tex]
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Calculate the power
[tex]f(4)=7\times 16+4\times 4-6[/tex]
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Calculate the product or quotient
[tex]f(4)=112+4\times 4-6\\ f(4)=112+16-6[/tex]
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Calculate the sum or difference
[tex]f(4)=128-6\\ f(4)=122[/tex]
I hope this helps you
:)
