Q: Simplify the expression -21a plus 2b plus 14a-9b?

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17a + 21a + 45 = 38a+ 45

3(7a - 5b) + 2(4a - 3b) Multiply the contents of each bracket by the number outside it: 21a - 15b + 8a - 6b Bring like terms together: 21a + 8a - 15b - 6b Combine like terms: 29a - 21b This cannot be simplified further.

a2(2a2-21a+49) a2(2a-7)(a-7)

The GCF is 7a.

It is: 21a exponent 6

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17a + 21a + 45 = 38a+ 45

21a - 6a

No.

3(7a - 5b) + 2(4a - 3b) Multiply the contents of each bracket by the number outside it: 21a - 15b + 8a - 6b Bring like terms together: 21a + 8a - 15b - 6b Combine like terms: 29a - 21b This cannot be simplified further.

12a + 6b + 9a + 14b =(12a + 9a) + (6b + 14b) =21a + 20b

a2(2a2-21a+49) a2(2a-7)(a-7)

The "Bobcat" name was before the numerical assignment. They are one in the same gun.

7a

1008ab

The GCF is 7a.

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3