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gladu [14]
2 years ago
8

How do you factor quadratics trinomials

Mathematics
1 answer:
Doss [256]2 years ago
6 0

You can factor trinomials by taking factors of the lead term (x^2) and using them in the front of a set of parenthesis. For instance, if you had 2x^2 as the first term, you would use (2x _____)(x______).

Now to find what goes at the end of the parenthesis, you take factors of the last number. Say our last number was -5, we could use -5 and 1 or 5 and -1. For the purpose of this, we'll use -5 and 1. This would give us (2x - 5)(x + 1).

Now, to be sure you've selected the right ones, you would multiply the two parenthesis together and see if the middle term matches the original equation.

(2x - 5)(x + 1)

2x^2 - 5x + 2x - 5

2x^2 - 3x - 5

So you'll notice that the middle term is -3. If this wasn't the original, you could try those numbers in a different order until you get the correct middle term.

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Graph y = x2 + 10x + 25.<br> Determine the number of solutions.
vesna_86 [32]

Answer:

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Step-by-step explanation:

The equation will be a horizontal parabola that has an x-intercept of (-5,0) therefore 1 solution

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3 years ago
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The ratio of students who wear glasses to the total class is 2:5
Taya2010 [7]

Answer:

a. 2:3, b. 25 students, c. 3:2

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c. 25 (total students) - 15 (without glasses) = 10 (with glasses). (10+5):(15-5) is 15:10, which, when simplified, equals to 3:2.

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2 years ago
Alex skateboards at a constant speed from his house to school 3.8 miles away. It takes him 18 minutes. What fraction represents
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. . . or simply

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What is 0.25r + 0.6s​
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Step-by-step explanation:

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