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2 answers:
Answer:
Second option
Step-by-step explanation:
If you multiply it out you get:
The two middle terms cancel out because of the sign difference of the two fours.
Result:
Difference of squares. If the two multiplied brackets look exactly the same except for a sign difference in one of the terms (4 in this case) it is difference of squares.
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The true statement is that Stephen's factored expression is incorrect.
Given
The expression is given as:
Factorization involves splitting a function into factors.
Start by expanding the equation
Factorize the equation
Factor out x - 7
Hence, the true statement is that Stephen's factored expression is incorrect.
Read more about factored expressions at:
Answer:
Vertex (2 , -25)
Axis of symmetry: x = 2
Step-by-step explanation:
<h3>Vertex of parabola:</h3>The vertex is the highest point if the parabola open downwards and the lowest point if the parabola opens upward.
f(x) = (x - 2)² - 25
The given quadratic function is in vertex form.
f(x) = a(x - h)² + k
Here, (h , k) is the vertex of the parabola.
h = 2 ; k = -25
The axis of symmetry is the vertical line that divides the parabola into two equal halves and it passes through the vertex of the parabola.
Axis of symmetry: x = h