ZyiereC122616 ZyiereC122616

30-10-2022
Mathematics

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What value of g makes the equation true? (x+7)(x-4)= x2 + QX-28

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BlaireI223865 BlaireI223865

30-10-2022

[tex]\mleft(x+7\mright)\mleft(x-4\mright)=xx+x\mleft(-4\mright)+7x+7\mleft(-4\mright)=xx-4x+7x-7\cdot\: 4[/tex]

simplifying

[tex]x^2+3x-28[/tex]

therefore the value of Q is 3

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