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If \(a=1\), \(b=0\), \(c=-25\), what is the quadratic equation in standard form?

Answer and explanation

Correct answer: \(x^2-25=0\)

The standard form is \(ax^2+bx+c=0\). Substituting gives \(1\cdot x^2+0\cdot x+(-25)=0\), which simplifies to \(x^2-25=0\). Option B has the wrong sign for the constant term (\(+25\) instead of \(-25\)), option C wrongly assigns \(b=25\) and changes \(c\), and option D changes/scales the coefficients. Exam tip: Plug values into \(ax^2+bx+c=0\) and simplify term-by-term; always check signs.

Related tags

Quadratic EquationsForming EquationsStandard FormClass 10CoefficientsIntroduction To Quadratic EquationsMathematicsClass 10 Mcq

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