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- Solve with the quadratic formula, exact answers, or say there are no real solutions.x^2 + 4x - 7 = 03x^2 - 7x + 2 = 02y^2 + 2y - 3 = 05m^2 - 3m + 1 = 0-x^2 + 6x - 4 = 0
- Put each equation in standard form, clear decimals or fractions, then solve with the formula.3x^2 = 2 - 5xx(2x - 3) = 40.3x^2 + 0.4x - 0.2 = 02x(x + 3) = (x + 2)(x - 1)
- Name the method that reaches the solutions in the fewest steps for each equation.7x^2 + 2x = 05x^2 - x - 3 = 04(x + 1)^2 = 9x^2 - 12x + 30 = 0
- Find the two mistakes in Kofi's work on a quadratic equation.
- Word problem: how many days did Maya's push-up plan last?
- Word problem: use the kite sticks cut from a dowel to find their lengths.
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Using the quadratic formula: the lesson ›More Chapter 11 worksheets: Solving quadratic equations
- 11.1Solving quadratics by factoring
- 11.2Solving quadratics with square roots
- 11.3Completing the square
- 11.4Completing the square, leading coefficient not one
- 11.5Vertex form: reading, converting and graphing
- 11.6Factored form
- 11.7Reading a quadratic in its three forms
- 11.8Deriving the quadratic formula
- 11.9Using the quadratic formula
- 11.10The discriminant and the number of real solutions
- 11.11Maximum, minimum and projectile problems
- 11.12Systems with a curve