Answer:
the answer is 2x
Step-by-step explanation:
143 is the answer.
Step-by-step explanation:
The line that has the 1, and the 37° is a total of 180°.
To find the value of 1, simply subtract 37° from 180°:

<1 = 143
I hope this helps you
x.x+x.b+x.a+a.b
x^2+(b+a).x+a.b
a.b=8
a=1 b=8
a+b=k
k=1+8=9
a=2 b=4
k=2+4=6
a= -1 b= -8
k= -1-8=-9
a= -2 b= -4
k= -2-4=-6
Subtract 6 from 10 and your answer is x<4