The solutions of the quadratic equation 0 = 2x² − 6x − 140 are 10 and -7
Quadratic equation
The graph of a quadratic function is parabolic in nature. According to the question, we are to plot the graph of the function
y = 2x² − 6x − 140
The resulting parabola must have a minimum and open upwards.
Factorize the equation
y = 2x² − 6x − 140
2x² − 6x − 140 = 0
x² − 3x − 70=0
x² − 10x + 7x − 70=0
x(x-10) +7(x-10) =0
x =10 and -7
Hence the solutions of the quadratic equation 0 = 2x² − 6x − 140 are 10 and -7
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