Q. Solve the quadratic by factoring.5x2+11x+2=3x−1Answer: x=
Write Standard Form: Write the equation in standard form by moving all terms to one side of the equation.5x2+11x+2=3x−1Subtract 3x from both sides and add 1 to both sides to get:5x2+11x−3x+2+1=0Combine like terms:5x2+8x+3=0
Identify a, b, c: Identify a, b, and c in the standard form of the quadratic equationax2+bx+c=0.In the equation 5x2+8x+3=0, we have:a=5b=8b0
Find Multiplying Numbers: Find two numbers that multiply to a∗c (5∗3=15) and add up to b (8).The two numbers that satisfy these conditions are 5 and 3 because:5∗3=155+3=8
Split Middle Term: Rewrite the equation by splitting the middle term using the two numbers found in Step 3.5x2+5x+3x+3=0Group the terms:(5x2+5x)+(3x+3)=0
Factor by Grouping: Factor by grouping.Factor out the greatest common factor from each group:5x(x+1)+3(x+1)=0Now, factor out the common binomial factor (x+1):(5x+3)(x+1)=0
Set Factors Equal: Set each factor equal to zero and solve for x.5x+3=0 or x+1=0For 5x+3=0:5x=−3x=−53For x+1=0:x=−1
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