The girl will have walked 20,000 meters or 20 km
5x^2 + 7
the coefficient is 5
the variable is x
the exponent is 2
the constant is 7
Answer:
The square root of a negative number is not a real number
=
−
9
8
8
Step-by-step explanation:
We need an equation for this, theres no 'formula' for doing this (ignoring the quadratic formula, as that is a long-winded way of factorising a quadratic equation)
