i would like for you to explain it to me, all answers would be appreciated.
-
81.
Easiest way to find the perfect square. Use the middle one and divide by 2. In this case, 18. 18 divide by 2 is 9. 9^2 is 81
Easiest way to find the perfect square. Use the middle one and divide by 2. In this case, 18. 18 divide by 2 is 9. 9^2 is 81
-
Hi, John!
Remember, that (a + b)² = a² + 2ab + b². So, if "p² + 18p + x," is a perfect square, then:
18p = 2px.
Solving for x,
x = 9.
Set c=x², and we have c = 81, and (p + 9)² = p² + 18p + 81, a perfect square.
Answer:
c = 81
Remember, that (a + b)² = a² + 2ab + b². So, if "p² + 18p + x," is a perfect square, then:
18p = 2px.
Solving for x,
x = 9.
Set c=x², and we have c = 81, and (p + 9)² = p² + 18p + 81, a perfect square.
Answer:
c = 81