Question

1) 3x(x-3)+x(x-1)=50

2) 4x^2-10x=50
3) 2x^2-5x-25=0

How do you get from steps 1 to 2 to 3?

Answer 1

Explanation:

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1. 3x(x-3)+x(x-1)=50
2. multiply inside the brackets then
3. 3x^2-9x+x^2-x=50
4. then arrange then according to power and add or subtract
5. 4x^2-10x=50 here is your step 2
6. take 2 common form LHS as
7. 2(2x^2-5x)=50
8. then you will get your step 3 as
9. 2x^2-5x=25.....25 comes from 50/2 and 2 is from LHS