Find the product (6x + 5)(8x - 4)?

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if make box easy. box should (sorry not transfer word document.
6x + 5

8x 48x^2 40x
-4 -24x -20

did multiplied 6x 8x gave 48x^2 multiplied 8x 5 , 6x -4. must find sum of 8x 5 , 6x -4 16x (40x-24x=16x). multiply 5 -4 -20. these numbers (48x^2, 16x , -20) add them gives answer 48x^2 + 16x + -20 or 48x^2 + 16x -20 (same thing).

hoped helped. there called foil find way simpler.

(6x + 5)(8x - 4)


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