Add the polynomials. (7y^2+2y-9)+(-3y^2-y) = ?
1 answer:
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Given.
(1)
(2)
Re-arrange equation (2)
Multiply equation (2) by -1
(3)
Combine like terms and solve.
Divide by (2y) and solve for (y).
Substitute (y) for equation (1).
Add (8) to both sides.
Divide by (3).
Check your work.
Your answers is and