johnarmstrong87u johnarmstrong87u

11-12-2020
Mathematics

contestada

what is the product is 7x-4 and 8x +5

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iteoluwajunaid iteoluwajunaid

11-12-2020

Answer:

To find the product, we use FOIL method.

First terms

Outer terms

Inner terms

Last terms

Product = (7x * 8x) + (7x * 5) + (-4 * 8x) + (-4 * 5) =

Product = 56x2 + 35x - 32x - 20 =

Product = 56x2 + 3x - 20

Step-by-step explanation:

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josyylopezz josyylopezz

11-12-2020

7x-4=8x+5
+4 +4
7x=8x+9
-8x -8x
-1x=9
divide -1 on both sides
x=-9

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