I would go with B i had this question on my test and i got it correct
Answer:
x=8
Step-by-step explanation:
set both equations equal to each other
x^2-3x-10=-2x=2
combine like terms
x^2=1x+8
x+8
Hope this helps!
31a6b5 i think if just add them but to put it in an expression you would need to perethisis the A together with the b together and the numbers together