Mathematics: What value of g makes the equation tue (x+7)(x-4)=x^ 2+gx-28

What value of g makes the equation tue (x+7)(x-4)=x^

Ответ:

Selen13

21.01.2022

$\huge\boxed{g=3}$

Step-by-step explanation:

$(x+7)(x-4)=x^2+gx-28\\\\\text{Use}\ FOIL:\ (a+b)(c+d)=ac+ad+bc+bd\\\\(x+7)(x-4)=(x)(x)+(x)(-4)+(7)(x)+(7)(-4)\\\\=x^2-4x+7x-28=x^2+3x-28\\\\x^2+3x-28=x^2+gx-28\\\\\begin{array}{ccc}x^2&3x&-28\\\downarrow&\downarrow&\downarrow\\x^2&gx&-28\end{array}\Rightarrow g=3$

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Ответ:

santiagobermeo32

17.02.2023

Mathematics

1.60839160839

Step-by-step explanation:

HOPE THIS HELPS U PUT AND IF IT DID PLS MARK ME AS BRAINLIEST

~Alex :)

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What value of g makes the equation tue (x+7)(x-4)=x^ 2+gx-28

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