Answer:
x^2 +3x -54
Explanation:
Use the method FOIL
(First, Outer, Inner, Last)
1. Multiply the 1st terms in bracket 1 and the 1st term in bracket 2:
(x × x)
2. Multiply the 1st term in bracket 1 and the 2nd term in bracket 2:
(x × 9)
3. Multiply the 2nd term in bracket 1 and the 1st term in bracket 2:
(-6 × x)
4. Multiply the 2nd term in bracket 1 and the 2nd term in bracket 2:
(-6 × 9)
5. You'll get the answer:
(x^2 + 9x - 6x - 54)
(x^2 + 3x -54)