Factor completely. If the polynomial cannot be factored, say it is prime.x4 - 64
A. prime
B. (x2 - 8)2
C. (x2 + 8)2
D. (x2 + 8)(x2 - 8)
Answer: D
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Find the perimeter of the polygon described. Write any improper fractions as mixed numbers.A regular pentagon; one side is 8 cm long.
A. P = 32 cm B. P = 320 cm C. P = 40 cm D. not enough information given
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Write the x- and y-intercepts of the graph.
A. x-intercept: 1; y-intercept: - 
B. x-intercept: 1; y-intercept: 1
C. x-intercept: - 
; y-intercept: 1
D. x-intercept: - 
; y-intercept: - 
Solve the system using the elimination method or a combination of the elimination and substitution methods.4x2 - 2y2 = -23x2 + 5y2 = 57
A. {(2, 3), (3, 2), (-2, -3), (-3, -2)} B. {(2, 3), (-2, 3), (2, -3), (-2, -3)} C. {(-2, -3), (-3, -2)} D. {(2, -3), (2, 3)}