27. Which statement is true?
D. 38
A. The product of the sum and difference of two terms is the difference of two squares.
B. The square of a binomial is also a binomial.
C. The terms of the cube of a binomial are all positive
D. The product of two binomials is always a trinomial.
28. What must be added to r + 8x to make it perfect square trinomial?
A. 4
B. 8
C. 16
D. 36
29. What is the value of c makes 25x2 - 30xy + c a perfect square?
A 9
B. 9y-
C. y
D. 9y
30. Factor the expression completely. 2x2 + 4x - 16
A. 2(x+4)(x-4)
B. 2(x-2)(x+4)
C. 2x(x-2)(x+ 4)
D. 2(x+ 2)(x-4)
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Answer:
a
c
b
d
Step-by-step explanation:
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