Solve for x: x2 – 9 = 0. A. x = 9 or -9 B. x = 4 or -4 C. x = 81 or -81 D. x = 3 or -3
x^2 - 9 = 0 ; x^2 = 9 ; x = 3.
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Solve the quadratic equation. 2x^2 = 32 A. x = ±4 B. x = 2 and x = 32 C. x = 1 and x = 16 D. x = ±2
Weegy: 2x^2 = 32; x^2 = 32/2; x^2 = 16; x = ±4 (More)
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Updated 8/31/2014 6:26:33 PM
Solve for x: (2x - 4)2 = 1 A. 2, 3 B. 3/2, 5/2 C. 3/2, 3/5 D. 3/2, -5/2
Weegy: The answer is A. 2,3. (More)
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Updated 8/1/2014 12:40:07 PM
(2x - 4)^2 = 1;
4x^2 - 16x + 16 = 1;
4x^2 - 16x + 16 - 1 = 0;
4x^2 - 16x + 15 = 0;
(2x - 3)(2x - 5) = 0;
2x - 3 = 0; 2x = 3; x = 3/2;
2x - 5 = 0; 2x = 5; x = 5/2;
Solutions: x = 3/2 or x = 5/2
Add the following trinomials: (5x2 - 3x - 6) + (x2 + 6x - 6). A. 6x4 +3x B. 6x2 + 3x + 12 C. 6x2 + 3x - 12 D. 6x2 - 12
Weegy: (5x2 - 3x - 6) + (x2 + 6x - 6) = C. 6x2 + 3x - 12 (More)
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Factor the following trinomial completely: 4x2 - 48x + 144 A. 2(x - 6)2 B. 4(x - 6)2 C. (2x - 6)2 D. (2x - 12)2
Weegy: 4x2 - 48x + 144, the factored form is: B. 4(x - 6)2 (More)
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Factor out the greatest common monomial: 35x - 21y A. x(35 - 21y) B. y(35x - 21) C. 7xy(5 - 3) D. 7(5x - 3y)
Weegy: D. 7(5x - 3y) is the answer. (More)
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