Answer:
x = - 1
Step-by-step explanation:
The equation of the axis of symmetry for a parabola in standard form
y = ax² + bx + c : a ≠ 0 is found using
x = -
y = - x² - 2x - 5 ← is in standard form
with a = - 1 and b = - 2, thus equation of axis of symmetry is
x = - = - 1
Equation of axis of symmetry is x = - 1
Like terms: and , and , and
Not like terms: and , and , and
Two or more terms are called like terms if they have same variables and powers.
and are like terms because they have same variable y with same power 2.
and are not like terms because they have same variable y with different powers.
and are like terms because they have same variables kt with same power 1.
and are like terms because both are constant.
and are not like terms because one have variable and other is constant.
and are not like terms because they have different variables.
The answer is 2 and 3