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Quadratic Equations

Quick questions on Solving quadratics by square roots - Virginia SOL Algebra I

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Solve x2=81x^2 = 81. [1 point]
What is q2?
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Solve (x+2)2=25(x + 2)^2 = 25. [2 points]
What is not isolating the square first?
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Divide off the coefficient: 3x2=123x^2 = 12 becomes x2=4x^2 = 4 before square-rooting.

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