IDNStudy.com, kung saan ang kuryusidad ay nagtatagpo ng kalinawan. Hanapin ang impormasyon na kailangan mo nang mabilis at madali sa pamamagitan ng aming komprehensibo at eksaktong platform ng tanong at sagot.

1) Find two positive integers whose difference is 1 and the difference of their squares is 5.
2) Find the dimensions of a rectangle whose length is 2 cm more than twice its width, and whose area is 84 square centimeters.


Sagot :

1.) 3&2

Explanation: 3²+2²= 9 -4

9-4= 5

2.) 6 cm

A= lw

2x + 2(x) =84

2x²+2x-84= 0

---------------

2

x²+x-42=0

(x+7) (x-6) =0

x+7= 0 x-6 =0

-7 -7 +6 +6

x= -7 x= 6