Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
AlgebraQuadratic Equations
Solve: $x^2 + 18x + 81 = 0$. What is the factor form?
- A.$(x + 81)(x + 1)$
- B.$(x - 9)^2$
- C.$(x + 9)(x - 9)$
- D.$(x + 9)^2$Correct answer
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Practice these MCQs in the appQuick fact: The factor form of $x^2 + 18x + 81 = 0$ is $(x + 9)^2$.