You have to distribute it or use FOIL (if u know that method). This is basically factoring.
for instance:
(2x-9)×(x+4)
first: 2x × x = 2x^2
second: 2x × 4 = 8x
third: -9 × x = -9x
forth: -9 × 4 = -36
now combine like terms.
2x^2 + 8x -9x - 36
(8x and -9x are like terms)
(add the two together, which is -1x or -x)
2x^2 -x -36 is ur answer
now do this same method for the rest
<span><span>(10)</span><span>(3.26)</span></span><span>=<span>32.6
Your answer is in Bold.
~Good Luck~</span></span>
Answer:
the length is x-3 but I don't have any information to solve the rest but if there is any more info pls lmk so I can solve it for u
Step-by-step explanation:
