The polynomial below is a perfect square trinomial of the form a2 - 2ab + b2
1 answer:
This is a true statement. Here's how we know. The factors of that general formula are (ax - b)(ax - b). If that is in fact the general formula of the quadratic shown, then our a would be 2 and our b would be 3, since 2 times 2 is 4 which is the leading coefficient, and 3 times 3 is 9 which is the constant. Those factors, filled in accordingly, would be (2x - 3)(2x - 3). If we FOIL those out we should get back the quadratic in question. FOILing gives us
which of course simplifies to
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ANSWER
Vertex form:
Vertex
V(-4,-11)
EXPLANATION
The given expression is
We complete the square to get the vertex form.
Add and subtract half the square of the coefficient of x.
The vertex is
V(-4,-11)
Vertex form:
Vertex
V(-4,-11)
EXPLANATION
The given expression is
We complete the square to get the vertex form.
Add and subtract half the square of the coefficient of x.
The vertex is
V(-4,-11)