The sum of a square of a number and one less than the number, equals nine less than, the square of one more than the same number. Find the number.
Answers
Answered by
4
Answer:
Step-by-step explanation:
Attachments:
Answered by
6
★Question★
The sum of a square of a number and one less than the number, equals nine less than, the square of one more than the same number. Find the number.
★Answer★
Let the number be 'x'.
Atq,
=> x² +x-1=(x+1)²-9
=>x²+x-1=x²+1+2x-9
=>x²-x²+x-2x-1-1+9=0.
=>x-7=0
.°. x =7.
Similar questions