## Diana.xL one year ago Help!

1. Diana.xL
2. Diana.xL

plz help! i need a step by step explanation

3. imqwerty

the area of a rectangle is given by= length x breadth you are given - $area=x^2 +12x$and $breadth=x$ let the length be l so $l \times x =x^2 +12x$ then u take x common in the right hand side $l \times x =x(x+12)$then divide both sides by x$(l \times x)\div x =x(x+12)\div x$$l=x+12$

4. Diana.xL

Thank u soo much! can u help me with part b?

5. Diana.xL
6. imqwerty

so in part b u just have u find the numeric value of l and this time u are given that x=10 up there^ we found out that l=x+12 so jst put x=10 and get- l=10+12 l=22

7. Diana.xL

thats all we have to do?

8. imqwerty

yes :)

9. Diana.xL

Thank u! :))

10. imqwerty

no prblm :D btw sry i replied so late i was chattin down there in the chat boxes :)

11. Diana.xL

its ok :)