-7 - 3x = 9x(x + 2)
Standard Form:
-9x^2 - 21x - 7 = 0
72 + 12 = 84 stickers
ignore “she put 9 stickers on each page” because the question asked how many stickers she had total not how many on each page
Answer:
5 roots
Step-by-step explanation:
Given

Required
The number of roots
The degree of a polynomial represents the number of roots.
In the given equation, the degree of the polynomial is 5.
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<em>Hence, the number of roots is 5</em>
(5x²+4x-80)(x²-5x-24)=5x²(x²-5x-24)+4x(x²-5x-24)-80(x²-5x-24)
{distributive property of multiplication}
=5x^4-25x³-120x²+4x³-20x²-96x-80x²+400x+1920
=5x^4-21x³-220x²+304x+1920
This is the answer.
answer:
I think that the right answer is the first, because:
- 6 + 1.5r = - 12
+ 1.5r = -12 + 6
1.5/1.5 = - 6
r = - 6