First you want to write 7x as a sum or difference: 15x-8x
Now, the expression would look like this: 10x^2+15x-8x-12
Next, factor out the 5x and -4 from the expression: 5x(2x+3)-4(2x+3)
Now, factor out the 2x+3 from the expression and you have your answer:
(2x+3)(5x-4)

4 0

3 years ago

How many degrees are in an angle that turns through 1/3 of a circle?

Leona [35]

Hello!

We know that, in terms of radians and degrees, that an angle that turns through the entirety of a circle is 360 degrees. To find 1/3 of it, we just multiply by 1/3.

360(1/3)=120

Therefore, our answer is 120°.

I hope this helps!

6 0

3 years ago

Read 2 more answers

F(x)=2x + 1 and g(x) = -3x+4. Find f(x) + g(x)

Aneli [31]

To do this, simply add the 2 functions-as it says:

(2x+1) + (-3x+4)
2x+1-3x-4
-x-3

Your answer is -x-3

5 0

3 years ago

Jia is tiling a floor. The floor is a square with side