Write the following in standard form and identify the value of a , b and c.
standard form a , b
1. 3 – 4x + x2 = 0
2. 2×2 = 8x
3. x2 + 4 = – 3x
4. 3×2 = 10x – 3
5. 2×2 + 7 = 6x
Answer:
1. 3 – 4x + x² = 0
x² – 4x + 3 = 0
a = 1
b = -4
c = 3
2. 2x² = 8x
2x² – 8x = 0
a = 2
b = -8
c = 0
3. x² + 4 = -3x
x² + 4 + 3x = 0
x² + 3x + 4 = 0
a = 1
b = 3
c = 4
4. 3x² = 10x – 3
3x² – 10x + 3 = 0
a = 3
b = -10
c = 3
5. 2x² + 7 = 6x
2x² + 7 – 6x = 0
2x² – 6x + 7 = 0
a = 2
b = -6
c = 7
