Multiply using the rule for finding the product of the sum and difference of two terms.(x + 5)(x - 5)
A. x2 - 10x - 25
B. x2 - 10
C. x2 + 10x - 25
D. x2 - 25
Answer: D
Mathematics
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Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)r = 
for A
A. A = ± 
B. A = 2?r2
C. A = 2?r
D. A = ± 2?
Mathematics
Solve.6r + 10 = 52
A. 40 B. 36 C. 7 D. 1
Mathematics
Add the value that will turn the expression into a perfect square trinomial to complete the square. Then factor the trinomial to a squared binomial.x2 - 5x
A. add 0; 
2
B. add - 
; 
2
C. add 
; 
2
D. add 25; 
2
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors.log4
A. - 3log4x
B. log4x - 3
C. 
log4x - 3
D. 12 - 
log4x
Mathematics