Group up the like terms and combine them
2x^2 and -7x^2 add up to -5x^2
6x and 2x add up to 8x
1 and -3 add up to -2
We end up with -5x^2 + 8x - 2
your missing the exponent but
B
Step-by-step explanation:
Answer:
x = 1 + i √ 2 , 1 − i √ 2
