289-264 8. Simplify a. 15 C 5 by 5 d. -5 9. Find the solution of the equation 2n? - 4n - 30 = 0? a 3 and -5 C. -3 and 5 b. 3 and -5 d. 3 and 5 10. Which of the following is a perfect square trinomial? a, y2 + 15y +44 c. dz. 170 + 66 b. h2 - 38h + 361 d. w2 - 15w + 54
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Answer:
8.C
9.
Let's solve your equation step-by-step.
2n2−4n−30=0
Answer:
n=−3 or n=5
10.B
Let's factor h2−38h+361
h2−38h+361
Answer:
(h−19)(h−19)