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Question
Write the following equation in the form ax2 + bx + c= 0, then write the values of a, b, c for the equation.
x2 – 9 = 13
Solution
x2 – 9 = 13
\[\Rightarrow x^2 - 9 - 13 = 0\]
\[ \Rightarrow x^2 - 22 = 0\]
\[ \Rightarrow x^2 + 0x - 22 = 0\]
So, it is of the form ax2 + bx + c = 0 where a = 1, b = 0 and c = −22.
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