Add. Use a number line only as a check.12 + (-43)
A. 31
B. -55
C. 55
D. -31
Answer: D
Mathematics
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Factor the difference of two squares. Assume that variables represent whole numbers.x2 - 36
A. (x - 6)(x - 6) B. (x + 6)(x - 6) C. (x + 36)(x - 36) D. (x2 + 6)(x2 - 6)
Mathematics
Factor the polynomial completely using the grouping method.6x2 - 5xt - 6t2
A. (6x - 2t)(x + 3t) B. (3x - 2t)(2x + 3t) C. (6x + 2t)(x - 3t) D. (3x + 2t)(2x - 3t)
Mathematics
Solve the equation.x2 + 5x - 14 = 0
A. {7, -2} B. {7, 2} C. {-7, 1} D. {-7, 2}
Mathematics
Evaluate the expression.P(7, 7)
A. 5040 B. 2 C. 1 D. 2520
Mathematics