3 years ago

Factoring trinomials????x^2+8x+15

Mathematics

2 answers:

DiKsa [7]3 years ago

6 0

X^2+8x+15

= x^2 + 5x + 3x + 15

= x(x+5) + 3(x+5)

= (x+5)(x+3)

Scilla [17]3 years ago

4 0

You nee 2 numbers whose sum is +8 and whose product is +15.

That is 3 and 5.

so the answer is (x + 3)(x + 5)

You might be interested in

Danielle has taken five math tests so far this year. The tests are out of twenty points, and she has gotten the following scores

dusya [7]

14, 16, 17, 19, 20
17 is the middle one so the answer is 17

Hope this helps :)

6 0

3 years ago

Read 2 more answers

Best estimate for 1kg =1,000g

Sphinxa [80]

I think the answer is 1g

3 0

3 years ago

What statement regarding the diagram is true?

kumpel [21]

I believe the second one right, because if I remember two opposite angles of an outside angle = the outside angle.

8 0

3 years ago

For one Geometry test, Nancy correctly answered 18 questions. These correct answers gave her a percent score of 72%. In total, h

Brrunno [24]

Answer:

25 questions.

Step-by-step explanation:

Correct answer = 18

The percent score of the correct answers is 72%.

Let there are x questions in the test. So,

According to the given condition,

$72\%\ of\ x=18\\\\\dfrac{72}{100}x=18\\\\x=\dfrac{18\times 100}{72}\\\\x=25$

Hence, there were 25 questions in the geometry test.

4 0

3 years ago

Y=f(x)=2x find f(x) when x=2

Rainbow [258]

Y=f(x)=2x find f(x) when x=2

Plug in

f(2)=2(2) =4

Answer

3 0

4 years ago

Read 2 more answers