Which is the correct expansion of $(x+6)(x-2)$?

Factor the trinomial $15x^2+20x+5$ by first extracting the GCF. What is the final factored form?

For the trinomial: $5x^2-8x-12$, which pair of binomials correctly factors this expression?

A manufacturing model predicts profit: $P\left(t\right)=2t^2-11t-21$ dollars, where $t$ is in thousands of units. Factor $P\left(t\right)$ completely to identify production thresholds (in thousands of units) and interpret the roots.

Use the AC method to factor $6x^2+17x+5$.