On a online test and will fail if i don’t get this right find the missing factor.
2x^2+15x+7=(2x+1)( )

(x+7)

Step-by-step explanation:

(x+7)(2x+1)=2x^2+14x+x+7=2x^2+15x+7

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180