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Quadratic Formula

Module Seventeen - Lazarski

QuestionAnswer
x^2+7x+4=0 Use the quadratic formula to solve. x = -7 plus/minus the square root of 33, all over 2.
(x+5)x-1=2 Use the quadratic formula to solve. a = -2 plus/minus the square root of 11.
2/5y^2+1/5y+3/5=0 Use the quadratic formula to solve. x = -1 plus/minus i the square root of 23, all over 4.
How many solutions does a positive answer to b^2-4ac have? Two real solutions.
How many solutions does the answer 0 to b^2-4ac have? One real solution.
How many solutions does a negative answer to b^2-4ac have? Two complex, but not real, solutions.
Solve 6=4x-5x^2 and tell how many solutions it has. -104 with two complex, but not real, solutions.
A=X, B=X+8, C=36ft Solve for x. 21 and 29
How is the Pythagorean Theorum written? a^2+b^2=c^2
(p+2)^2=9(p+2)-20 Solve for p+2. 2 and 3
x^2/3-3x^1/3-10=0 Solve for x^1/3 125 and -8
(x+1)(x-5)=4 Solve for x. x=2 plus/minus the square root of 13.
Created by: 1062583622