- #26

symbolipoint

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I see the original equation to solve: in pure text form, x(7x-8)=15

Distributive property is obvious to use, first.

7x^2-8x=15

7x^2-8x-15=0

Now if this is easily factorable, then try to set up these and test:

- (7x 3)(x 5)
- (7x 5)(x 3)
- (7x 1)(x 15)
- (7x 15)(x 1)

If any look good, check how the signs should work.