SOLUTION: find two consecutive numbers whose product is 72

Question 125008: find two consecutive numbers whose product is 72
Answer by dolly(163) (Show Source): You can put this solution on YOUR website!
Let the numbers be x and x+1
Then x(x+1) = 72
==> x^2 + x - 72 = 0
==> x^2 + 9x - 8x - 72 = 0
==> x(x+9) - 8(x+9) = 0
==> (x+9) (x - 8) = 0
==> x + 9 = 0 or x - 8 = 0
==> x = -9 or x = 8
Thus the numbers are -9, -8 or 8, 9
good luck!!!
dolly
RELATED QUESTIONS
find two consecutive numbers whose product is... (answered by nadinadan)

find two consecutive numbers whose product is... (answered by checkley71,josmiceli)

please help me solve this problem: {{{find two consecutive numbers whose product is... (answered by josgarithmetic)

Find two consecutive integers whose product is... (answered by nerdybill)

Find two consecutive even integers whose product is 72. Find two consecutive even... (answered by ewatrrr)

Find two consecutive integers whose product is 72. Find two consecutive even... (answered by ewatrrr)

find two numbers consecutive pairs whose product is... (answered by checkley71)

find two consecutive odd numbers whose product is... (answered by josmiceli,jim_thompson5910,dolly)

find two consecutive even numbers whose product is... (answered by stanbon)