Question

Find all solutions of the system of equations:

−2x^3 − 2x^4 +x^5 + 2x^6 = −6
2x^1 + 2x^2 +x^3 + x^4 −4x^5 − x^6 = 4
2x^1 + 2x^2 −4x^5 = 2
−x^1 − x^2 + x^4 +4x^5 = −2

Answer 1

if the matrix equals A. Do i just use the formula x=A^-1b

Answer 2

ah u can't because it is not a square matrix...