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If \[(3x-4)(5x+7)=15{{x}^{2}}-ax-28.\]Find the val...
1.
If \[(3x-4)(5x+7)=15{{x}^{2}}-ax-28.\]Find the value of a.
A.
1
B.
-1
C.
-2
D.
2
Answer» C. -2
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