2 Answered Questions for the topic Please help me
Please help me on this question. I Need to get this done in order to get my grade lifted up
If (f+g)(x)=7x^2−11x+3,which of these could be f(x) and g(x)?
f(x)=−x^3+x^2+3; g(x)=x^3+6x^2−11x
f(x)=−8x+1; g(x)=7x^2−3x+3
f(x)=x^3+7x^2−2x; g(x)=−9x+3
f(x)=3x^2−6x−4; g(x)=4x^2−5x+1
Solve the system using Gaussian elimination and back-substitution. Help me please... this is all confusing
-x + 3y − z = -9 x − 2y + 2z = 8 2x − y + z = 7
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