629.Solve using the quadratic formula:
x^2 + 4x+ 4 = 0
a. 2
b. 2 i
c. 2
d.–2i
630.Solve using the quadratic formula:
x^2 + 5x– 6 = 0
a.–2, –3
b.1,–6
c.–1,6
d.3,2
631.Solve using the quadratic formula:
3 x^2 + 5x+ 2 = 0
a.–1,^23
b.–1, –^23
c.1, –^23
d.1,^23
632.Solve using the quadratic formula: 5x^2 – 24 = 0
a.
b.
c. 2 6
d. 2 i 6
633.Solve using the quadratic formula:
2 x^2 = –5x– 4
a.
b.
c.
d.
634.Solve using the quadratic formula:
x^2 + 2 2 x+ 3 = 0
a. 2 i
b. 2 1
c. 1 i 2
d.i 2
635.Solve using the quadratic formula:x^2 = –2x
a.2,0
b.–2,0
c. 2 i,–2i
d. 0
636.Solve using the quadratic formula: (3x–8)^2 = 45
a.
b.
c.
d.
637.Solve using the quadratic formula:
0.20x^2 – 2.20x+ 2 + 0
a.0.01, 0.1
b.10, 100
c.0.1, 1
d.1, 10
638.Solve using the quadratic formula:
x^2 – 3x– 3 = 0
a.
b.
c.
d.^3 221
–3^21
2
^3 ^7 ^3
2
^3 ^3 ^7
2
–8^5
3
–8^3 ^5
3
–3^5
8
–3^8 ^5
3
–7i^5
4
–5i^7
–4
^5 i^7
4
–5i^7
4
(^2) i 30
5
^2 ^30
5
- RADICAL EXPRESSIONS AND QUADRATIC EQUATIONS–