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Mathematics
Problem
Simplify:
2.5
x
2
−
0.7
x
+
4
−
1.3
x
2
+
2.2
x
−
6
2.5x^2 - 0.7x + 4 - 1.3x^2 + 2.2x - 6
2.5
x
2
−
0.7
x
+
4
−
1.3
x
2
+
2.2
x
−
6
a)
3.8
x
2
+
1.5
x
−
2
3.8x^2 + 1.5x - 2
3.8
x
2
+
1.5
x
−
2
b)
1.2
x
2
−
1.5
x
−
2
1.2x^2 - 1.5x - 2
1.2
x
2
−
1.5
x
−
2
c)
1.2
x
2
+
1.5
x
−
2
1.2x^2 + 1.5x - 2
1.2
x
2
+
1.5
x
−
2
d)
1.2
x
2
+
1.5
x
+
2
1.2x^2 + 1.5x + 2
1.2
x
2
+
1.5
x
+
2
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