Question

Please help me i beg you please

Answer 1

Answer:

ok

Step-by-step explanation:

Answer 2

24. 157²-143²

(157+143)(157-143)

300×14

4200

25. 8x-3/3x=2

8x-3=2×3x

8x-6x=3

2x=3

x=3/2

28. 5x-2/10=4x+3/12

60x-24=40x+30

60x-40x=30-24

10x=6

x=3/5

30. (y+5)²

y²+10x+25

31. Let Rahul's age be 5x

Let Haroon's age be 7x

5x+4+7x+4=56

12x+8=56

4(3x+2)=56

3x+2=56/4

3x= 14-2

x=12/3

x=4

Rahul's age=20years

Haroon's age=28years