Which of the following is not a quadratic equation (a) (y+1)square =6 (b) 2y square +5y=9 (c) (y+1)(y-1)=5 (d) y(y+1)(y+2)=6
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Step-by-step explanation:
The Elimination Method
Step 1: Multiply each equation by a suitable number so that the two equations have the same leading coefficient. ...
Step 2: Subtract the second equation from the first.
Step 3: Solve this new equation for y.
Step 4: Substitute y = 2 into either Equation 1 or Equation 2 above and solve for x.
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