Question

The units digit of a two digit number exceeds the tens digit by 1.If the product of the digit is 25 less than the number,find the number..(Quadratic equations word problems)

Answer 1

Answer:

let the 2 digit number be 10x + (x+1) = 11x + 1

given, (x+1)x = 11x + 1 - 25

x²+x = 11x - 24

x² - 10x + 24 = 0

(x-4)(x-6) = 0

so there are 2 such numbers: 45 and 67

Step-by-step explanation:

i hope this helps u