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Back to Solve quadratic equations — Problem 3 · Task Set 38

Exercises: Solve Quadratic Equations in One Variable

Show all steps. Verify solutions by substituting back into the original equation where indicated.

Grade 9·20 problems·~40 min·Common Core Math - HS Algebra·standard·hsa-rei-b-4
Work through problems with immediate feedback
A

Fluency Practice

A six-row step table for completing the square, showing each algebraic step from the original equation to the solution.
1.

Solve x2+8x+5=0x^2 + 8x + 5 = 0 by completing the square. Show every step: moving the constant, adding (b/2)2(b/2)^2 to both sides, factoring, and solving.