The polynomial x3 + 4x2 – 9x – 36 has 4 terms. Use factoring by grouping to find the correct factorization.

(x2 + 9)(x + 4)

(x2 – 9)(x – 4)

(x2 + 9)(x – 4)

(x2 – 9)(x + 4)

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

68 complete the following proof. given: qk=16, pk=26, mk=65, kl=40prove: ∆qpk~∆lmk

Graph the linear equation. find threepoints that solve the equation, then ploton the graph.x-y=1