Answer:
The answer to your question is x² + 5/2x - 3/2 = 0
Step-by-step explanation:
Data
Quadratic equation x² + 2.5x - 1.5 = 0
Process
1.- Convert the decimals into fractions
2.5 = 25/10 = 5/2
1.5 = 15/10 = 3/2
2.- Substitution
x² + 5/2x - 3/2 = 0
3.- Conclusion
I rewrite the equation, now it is expressed in fractions. It could be solve by factoring.
You can use lattice multiplication or long multiplication. for examples and/or visuals message me.
Substitute the x with 5
-(5)2 + 4(5) - 10 = 0
Answer:
110
Step-by-step explanation:
35+35=70 180-70=110