1) (x-2)^2
2)-4x(x+5)
pls mark as brainliest:))
I think it is 989 or 899
*3 digit number*
*26 sum*
Last two digits are the same
A quadratic equation is one in which the highest exponent of x is 2.

is quadratic; the highest exponent is 2.
x³-3x²+1=0 is NOT quadratic. The highest exponent of x is 3, not 2.
5x-7=0 is NOT quadratic. The highest exponent of x is 1, not 2.
x²+3x-5=0 is quadratic; the highest exponent of x is 2.
x-5=9x+7 is NOT quadratic. The highest exponent of x is 1, not 2.
x²-x=3x+7 is quadratic; the highest exponent of x is 2.
Answer:
false
Step-by-step explanation:
Formula: c=2
r
Circumference= two times pi times radius