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Earn +20 ptsQ: Why is x2 plus 9 prime?
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When the expressions x2 9 and x2 5x plus 6 are factored a common factor is?
x - 3
What is the factor of x2 plus 13x plus 36?
(x + 4)(x + 9)
Can you factor x2 plus 11x plus 18?
x2 + 11x + 18 (x + 9)(x + 2) CHECK: x2 + 9x + 2x + 18 x2 + 11x + 18 SET EACH EQUAL TO ZERO: x + 9 = 0 x = -9 x + 2 = 0 x = -2 NOW YOU ARE DONE: Solution set: {-9, -2}
Is x2 plus x-42 prime?
No, as it has two factors, (x - 6)(x + 7)
What is the LCM of x2 plus 16x plus 64 and x2 plus 3x-40?
x2 + 48x + 320
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