Practice Test 8

A quadratic function has the form $$f(x) = x^2 + bx + c$$ where $$b$$ and $$c$$ are integers. If the function can be factored as $$(x + 3)(x - 5)$$, what is the value of $$b - c$$?

Factor $x^2 + 6x + 9$ and find its zeros.

A quadratic function has the form $$f(x) = x^2 + bx + c$$ where $$b$$ and $$c$$ are integers. If the function can be factored as $$(x + 3)(x - 5)$$, what is the value of $$b - c$$?

Question Navigator