x² + 5x = 4
- 4x² = 8x - 3
10x - 1 = 4x2
15 + 8x - 3x2 = 0
3x(x - 14) = 12
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x² + 5x = 4
- 4x² = 8x - 3
10x - 1 = 4x2
15 + 8x - 3x2 = 0
3x(x - 14) = 12
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Answer:
2. -4x²=8x-3
-4x²-8x+3=0
a= -4
b= -8
c= 3
3. 10x-1=4x²
-4x²+10x-1=0
a= -4
b= 10
c= -1
4. 15+8x-3x²=0
-3x²+8x+15=0
a= -3
b= 8
c= 15