5.5 Quadratic Equations
Warm-up
Factor fully. 369 2 x
Solving by Factoring
1a) Solve. 15112 2 xx
Solving by Factoring
1b) Solve. 0862 xx
Solving by Factoring
1c) Solve. 12163 2 xx
Solving by Factoring
1d) Solve. xx 816 2
Solving by Factoring
1e) Solve. 462 2 xx
Solving by Finding Square Roots
2a) Solve. 01805 2 x
Solving by Finding Square Roots
2b) Solve. 0254 2 x
Solving by Finding Square Roots
3) The function models the height y in feet of a heavy object x seconds after it is dropped from the top of a building that is 270 feet tall. How long does it take the object to hit the ground?
27016 2 xy
270ft
y = 0
Solve by graphing
0352 xx
Solve by graphing
15196 2 xx
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