9x2 + 49x = 22 − 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 Which is the best step to do next to solve the equation by completing the square?

Next Step Is 9(+6x+9)=103

Step-by-step explanation:

9+49x=22-5x

9+54x=22

9(+6x)=22

now to turn the equation into a perfect square , we must add 81 on both sides

9(+6x)+81=22+81

9(+6x+9)=103       :-   [=+6x+9]

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value