bombshellbri
1. Multiply.
(3x – 5)2
a. 9x2 – 30x + 25
b. 6x2 – 10
c. 9x2 – 25
d. 9x2 – 15x + 25
2. Multiply.
(x + 3)(x – 4)
a. x2 – 7x – 12
b. x2 – x – 12
c. x2 + x – 12
d. x2 – 12
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love_math
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(a-b)^2=a^2-2ab+b^2
Compassionate
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You first multiple inside parenthesis.
2 * 3x
2 * -5
Compassionate
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For the other one use the FOIL method:
First, Inner, outer, Last.
love_math
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it is square not 2
bombshellbri
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@love_math is right. it is squared.
Compassionate
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I'm aware.
bombshellbri
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why;d you erase your first comment?
Compassionate
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9x^2 - 25
x^2 - x - 12
bombshellbri
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a. 9x2 – 30x + 25 was the answer
Compassionate
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No it wasn't.
\[(3x - 5)^2\]
\[3x^2 - 25\]
This polynomial is not factorable with real numbers.
Your test is messed up.
So maybe it wants:
\[9x^2 - 25\]
Again, this polynomial isn't factorable with real numbers.
Your test is wrong.
bombshellbri
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sure.