High School Maths Examples and Questions

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Answers − Solving quadratics of the form x2 + bx + c = 0 using the quadratic formula

1.    Solve x2 + 6x + 8 = 0


Verify by putting these two values of x into x2 + 6x + 8


2.    Solve x2 + 9x + 18 = 0


Verify by putting these two values of x into x2 + 9x + 18


3.    Solve x2 + x − 56 = 0


Verify by putting these two values of x into x2 + x − 56


4.    Solve x2 + 10x − 24 = 0


Verify by putting these two values of x into x2 + 10x − 24


5.    Solve x2 − 16x + 60 = 0


Verify by putting these two values of x into x2 − 16x + 60


6.    Solve x2 − 15x + 36 = 0


Verify by putting these two values of x into x2 − 15x + 36


7.    Solve x2 − 8x − 48 = 0


Verify by putting these two values of x into x2 − 8x − 48


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