Multiply two binomials (ax+b)(cx+d) using the FOIL method with step-by-step breakdown.
FOIL stands for First, Outer, Inner, Last — the four products formed when multiplying two binomials (ax+b)(cx+d). The result is acx² + (ad+bc)x + bd.
FOIL Method
(ax+b)(cx+d) = acx² + (ad+bc)x + bd
First (multiply the first terms), Outer (multiply the outer terms), Inner (multiply the inner terms), Last (multiply the last terms).
No — FOIL is specifically for two binomials. For larger polynomials, use the distributive property or the polynomial expansion calculator.