Question

Use the grouping method to factor the polynomial below completely. Use the caret symbol ( ^ ) to write exponents; for example, enter x2 as x^2. Write each factor as a polynomial in descending order.

2x3 + 16x2 + 7x + 56

Answer 1

2x^3 + 16x^2 + 7x + 56

Factor the first two terms, then factor the last two terms.

Answer 2

2x^2(x + 8) + 7(x + 8)

Then factor what's common to both factorizations:
(x + 8)(2x^2 + 7)

Answer 3

Thank you, that helps