First, we must understand what the FOIL method is.
FOIL is an ancronym that we use to help us remember the steps when expanding brackets.
F - first
O - outer
I - inner
L- last
Step 1: Multiply the FIRST terms in each bracket giving:
2x * 3x = 6x2
Step 2: Multiply the OUTER terms in each bracket giving:
2x * 4 = 8x
Step 3: Multiply the INNER terms in each bracket giving:
-1 * 3x = -3x
Step 4: Multiply the LAST terms in each bracket giving:
-1 * 4 = -4
Step 5: Add all the terms together to give the expanded form of the equation giving:
6x2 + 8x + (-3x) + (-4) = 6x2 + 8x - 3x - 4
Giving:
6x2 + 5x - 4 as your final answer !