(5c-9)(5c-1)
i think it is :
25c sqaured-5c-45c+9
25c squared-50c+9
Online, it can be written:
25c^2 - 50c + 9
c^2 = c squared
To simplify the expression (5c-9)(5c-1), you can use the distributive property.
Step 1: Multiply the first terms of each binomial.
(5c) * (5c) = 25c^2
Step 2: Multiply the outer terms of each binomial.
(5c) * (-1) = -5c
Step 3: Multiply the inner terms of each binomial.
(-9) * (5c) = -45c
Step 4: Multiply the last terms of each binomial.
(-9) * (-1) = 9
Step 5: Combine the like terms obtained in steps 2 and 3.
-5c - 45c = -50c
Now, we can put all the terms together:
25c^2 - 50c - 9 + 9
The 9 and -9 cancel each other out, so the final simplified expression is:
25c^2 - 50c