Quadratic formula
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The document discusses using the quadratic formula to solve quadratic equations. It provides the standard quadratic formula, -b ± √(b2 - 4ac) / 2a, and walks through two examples of using it to find the value of x. Learners are instructed to identify the coefficients a, b, and c from the quadratic equation, plug those values into the formula, and solve for x.
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- 4. Objective: use the quadratic formula to find x! x + 7x + 12 2
- 5. x + 7x + 12 2 STEP 1: identify coefficients: a=_____ b=_____ c=_____ STEP 2: plug it into the formula! -b ± b - 4ac 2 2a
- 6. a=1 b=7 c=12 -b ± b - 4ac 2 2a
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- 8. Try it on your own! **find x using the Q.F. x - 4x + 6 2