Factor the polynomial completely using the grouping method.10x3 + 61x2 + 72x
A. 2x(x + 9)(5x + 8)
B. x(2x + 8)(5x + 9)
C. prime
D. x(2x + 9)(5x + 8)
Answer: D
Mathematics
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A. {x| -3 ? x ? 3} B. {x| -3 < x < 3} C. {x| x ? 3} D. {x| x ? -3 or x ? 3}
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Solve the system of equations using Cramer's Rule, if applicable.
A. ?
B. (4, -3)
C. {(x,y) 
D. (-3, 4)
Mathematics
Solve the equation. Give an approximate solution to four decimal places.e2x = 4
A. {0.1733} B. {0.6931} C. {5.4366} D. {2.7726}
Mathematics
Find the perimeter of the geometric figure.
A. 4r3 + r2 + 10r + 10 B. 4r3 + 11r + 10 C. r3 + 4r2 + 10r + 10 D. r3 + 3r2 + 11r + 10
Mathematics