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Q: What is 3a x a?

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81(a^4)

a x a x a = a3

3a

3a^2 + 3a^2 = 6a^2 3a^2 - 3a^2 = 0 3a^2 x 3a^2 = 9a^4 3a^2 divided by 3a^2 = 1

4ab * 3a = 12a2b -----------

x^3 + ax + 3a + 3x^2 = (x^3 + 3x^2) + (ax + 3a) = x^2(x + 3) + a(x + 3) = (x + 3)(x^2 + a)

9a- a number is squared when it is multiplied by itself, so 3a x 3a = 9a.

2a2

2a2 x 3a-3 = (2 x 3)a(2 + -3) = 6a-1

x3 + ax + 3a + 3x2 = x (x2 + a) + 3 (a + x2) = x (x2 + a) + 3 (x2 + a) = (x2 + a)(x + 3) Checking the work: x3 + ax + 3x2 + 3a or x3 + 3x2 + 3a + ax = x2 (x + 3) + a (3 + x) = x2 (x + 3) + a (x + 3) = (x + 3)(x2 + a)

3a + a = 4a Example: a = 5 (3x5) + 5 = 15 + 5 = 20 = 4 x 5

(3 x 3) - 6 = 3 3a-6=3 3a=3+6 3a=9 a=9/3 a=3

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