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Answer:
A. x - 5
B. x + 4
Step-by-step explanation:
Starting with:
x² - x - 20
Find two numbers that add up to -1 and multiply to form -20. We get:
-5, and 4. Use these numbers when writing this equation in factored form:
(x - 5) (x + 4) is the trinomial in factored form. The two binomials that are factors are:
A. x - 5
B. x + 4.
Answer:
Yes
Step-by-step explanation:
If the longest side squared is equal to the sum of the squares on the other 2 sides then they form a right triangle
longest side = 7.5
7.5² = 56.25
2.1² + 7.2² = 4.41 + 51.84 = 56.25
Thus the 3 values form a right triangle.
Answer:
x = -3 and x = -3/2
Step-by-step explanation:
After writing down the polynomial, split it; put a line between 3x^2 and -18x. Look and 2x^3 + 3x^2 and -18x - 27 separately and factor them both:
p(x) = 2x^3 + 3x^2 <u>- 18x -27</u>
p(x) = x^2(2x+3) <u>-9(2x+3)</u>
Now notice how x^2 and -9 have the same factor (2x+3). That means x^2 and -9 can go together:
p(x) = (x^2 - 9)(2x+3)
Factor it once more because there's a difference of squares:
p(x) = (x+3)(x-3)(2x+3)
Now just plug in whatever makes the each bracket equal 0:
x = -3, x = 3, and x = -3/2
Those are your zeros.
Answer:
No solution
Step-by-step explanation:
Using substitution, we get to the answer 12=0, which is untrue meaning no solution.
Hope this helps! Please give Brainliest!!
Answer:
76 inches
Step-by-step explanation:
20 + 18 = 38
38 x 2 = 76
