For #6
x^2 - 8x -33 = 0
(x + 3) * (x - 11) = 0
Answer:
=5x^2+4x−5
Step-by-step explanation:
Let's simplify step-by-step.
3x2−5x+1+2x2+9x−6
=3x2+−5x+1+2x2+9x+−6
Combine Like Terms:
=3x2+−5x+1+2x2+9x+−6
=(3x2+2x2)+(−5x+9x)+(1+−6)
=5x2+4x+−5
Well, $415.80 is the 100% price.
If we want 20% off of this price, we would need the 80% value of $415.80
80% of 415.80 = $332.64
Hope this helps!
Parentheses
Exponent
Multiplication
Division
Addition
Subtraction
so therefore, the last one of these in the equation (subtraction) is the last operation
Answer:
(x + 4)(x - 4)
Step-by-step explanation:
There are actually quite a lot of pairs of binomials the disproves Eric's conclusion, but they all model after the same special product: a^2 - b^2.
The special product a^2 - b^2 can be factored into (a + b)(a - b) and for all real a and b, it will come out as a binomial.
Here is an example:
(x + 4)(x - 4)
We can use the distributive property to get:
x^2 - 4x + 4x - 16
which is the same as
x^2 - 16
This would disprove Eric's conclusion.
