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02-07-2020
Mathematics

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PLEASE SOMEONE BE A LEGEND AND ANSWER THIS QUESTION ASAP!!!!!!!

PLEASE SOMEONE BE A LEGEND AND ANSWER THIS QUESTION ASAP class=

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Plus16463574585 Plus16463574585

02-07-2020

Answer:

[tex]a=2[/tex]

Step-by-step explanation:

[tex]f\left(x\right)=x^3+2x^2-7x+a\\\\x-2=0\quad\rightarrow \quad x=2\\\\f(2)=2^3+2\cdot \:2^2-7\cdot \:2+a\\\\4=2^3+2\cdot 2^2-7\cdot 2+a\\\\\Rightarrow a=2[/tex]

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