3 years ago

How do you work out (7x+3)(7x-3)

Mathematics

1 answer:

spin [16.1K]3 years ago

7 0

We can solve this using the FOIL method.

= (7x + 3)(7x - 3)

= (7x * 7x) + (7x * -3) + (3 * 7x) + (3 * -3)

= 49x - 21x + 21x - 9

= 49x - 9

Hope This Helped! Good Luck!

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