Question

the difference between two numbers is 2 and their product is 1443 .find the numbers

Answer 1

Heya!!!

.

Let one no. be x

Let the other no. be x+2

As given,

x (x+2)=1443

x^2+2x=1443

x^2+2x-1443=0

x=37

Therefore the other no. is x+2=39

.

Hope it helps

Answer 2



Secondary School

Math

5+3 pts

The difference between two numbers is 5 and their product is 14 find the difference between their cubes

Comments (5+) 

 by Aditi6543 29.07.2018

Answers



Divesh4186 · Helping Hand

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Gaurav2013c 

Maths AryaBhatta

Let the first number be a

Second number = a - 5

According to question,

a ( a - 5) = 14

=> a^2 - 5a = 14

=> a^2 - 5a - 14 = 0

=> a^2 - 7a + 2a - 14 = 0

=> a(a-7) + 2(a-7) = 0

=> (a-7) (a+2) = 0

a = 7 and - 2

Neglecting negative value, we get 

a = 7 

First number = 7

Second number = 2

Now,

Difference of their cubes = ( 7)^3 - (2)^3

= 343 - 8

= 335

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