(MATH 114N Week 6 Homework Section 17-3)
1. Question: Use the quadratic formula to solve the equation.
3r2 – 7r = 3
2. Question: Use the quadratic formula to solve the equation.
– 4×2 = – 5x + 2
3. Question: Use the quadratic formula to solve the equation.
0.4x – 0.7×2 = – 2
4. Question: Write the equation 4x2 + 3x – 7 = 0 in standard form ax2 + bx + c = 0, if necessary. Then identify the value of a, b, and c. do not solve the equation.
a = 4 b = 3 c = -7
5. Question: Write the equation in the form ax2 + bx + c = 0 where a > 0, if necessary. Then identify the value of a, b, and c. Do not actually solve the equation.
6×2 = 7x + 12
6. Question: Use the quadratic formula to solve the equation.
x2 + 4x + 4 = 0
7. Question: Solve by using the quadratic formula.
6p2 = – 19p – 3
8. Question: Use the quadratic formula to solve the equation.
2z2 – 3z = 1
9. Question: Use the quadratic formula to solve the equation.
– 3×2 = – 5x + 4
10. Question: Use the quadratic formula to solve the equation.
5×2 = 11x
11. Question: Use the quadratic formula to solve the equation.
81×2 – 16 = 0
12. Question: Use the quadratic formula to solve the equation.
3×2 – 2x + 5 = 10x + 1
13. Question: Use the quadratic formula to solve the equation.
k2 – k – = 0
14. Question: Use the quadratic formula to solve the equation.
0.4x – 0.7×2 = – 2
