Factor completely, if possible.98a4 - 50b2
A. 2(7a2 - 5b)2
B. 2(7a2 + 5b)2
C. 2(7a2 + 5b)(7a2 - 5b)
D. Prime
Answer: C
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Determine which of the following methods is the best choice for solving the given equation: factoring, using the principle of square roots or using the quadratic formula. Then, solve the equation.x2 + 10x - 24 = 0
A. Factoring; -12, 2
B. Square root principle or factoring; 12, 2
C. Quadratic formula; -2 ± i
D. Square root principle; -12 ± 2
Rewrite the number as a product using the power of 10 as a factor.89,000
A. 890 ? 102 B. 890 ? 101 C. 8902 ? 10 D. 890 ? 103
Solve the problem.The intelligence quotient in psychology is given by Q(m, c) = 100 ? 
, where m is a person's mental age, and c is his or her chronological , or actual, age. Find Q(19, 17) and round the answer to the nearest whole number.
A. 11 B. 89 C. 112 D. 100
Simplify.
A. 
B. 
C. 12x(x + 5)
D. 