Question

III Solve the following

1. Add : x2+x , 1+ x
2. Simplify : 3y2- 4y + 5 – y2+2y - 2 – y +7
3. Solve the equation: 2x – 3 = -5 using balancing method.
4. Subtract 2a +3b -5 from 2b – a + 2.

Answer 1

Answer:

Step-by-step explanation:

x^2 + x + 1 + x^2 -x + 1

= 2x^2 + 2

we got the sum

Now let's subtract

2x^2 + 2 - (-x^2 - x+ 1 )

= 2x^2 +2 + x^2 + x -1

= 3x^2 + x + 1