13. What must be added to 4m2 -28m to make it a Perfect Square Trinomial?
A. 4
B. 9
C. 36
D. 49
9. Which of the following polynomial is not factorable?
A. a²+3a+2
B. a²+a-2
C. a²-3a-2
D. a²-3a+2
8. What must be added to 81n²-36n+___to make it perfect square trinomial
A. 4
B. 8
C. 16
D.64
A. 4
B. 9
C. 36
D. 49
9. Which of the following polynomial is not factorable?
A. a²+3a+2
B. a²+a-2
C. a²-3a-2
D. a²-3a+2
8. What must be added to 81n²-36n+___to make it perfect square trinomial
A. 4
B. 8
C. 16
D.64
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
13. D. 49
9. C. a²-3a-2
8. A. 4
Step by step explanation:
13) 4m²-28m+49=0
2²m²-2×2m×7+7²
(2m)²-2×2m×7+7²
(2m-7)²
9) a. (a+2)(a+1) are the factors of a²+3a+2.
b. (a+2)(a-1) are the factors of a²+a-2.
c. a²-3a-2 doesn't have factors, or it isn't factorable.
d. (a-1)(a-2) are the factors of a²-3a+2
8) 81n²-36n+4
9²n²-2×9n×2+2²
(9n)²-2×9n×2+2²
(9n-2)²
Hope it helps (・∀・)