Baymax2point0 Baymax2point0

25-01-2021
Mathematics

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Factor completely 7x2-45x-28

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sqdancefan sqdancefan

25-01-2021

9514 1404 393

Answer:

(x -7)(7x +4)

Step-by-step explanation:

The term -45x can be rewritten using factors of (7)(-28) that have a total of -45. Those factors would be ...

(7)(-28) = (4)(-49)

7x^2 +4x -49x -28 = x(7x +4) -7(7x +4) = (x -7)(7x +4)

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