Answer:
answer should be A
Step-by-step explanation:
1 and -2
-2x^2=2x-4 so 2x^2 + 2x -4 = 0
2(x^2+x-2)=0
x^2+x-2 = (x-1)(x+2)
x=1 x=-2
646+738=1380
356+467=820