Multiplying in the Dark
Multiply the Polynomials:
3x2 (2x4)
6x6
Factor out the GCF
30x-42
6(5x-7)
Factor:
p2 +2p -35
(p-5)(p+7)
Solve by factoring:
x2 - 25=0
x=-5 and x=5
True or False: Can Factor Theorem work for any polynomial?
True
What number doesn’t have its own Roman numeral?
Zero
Multiply the Polynomials:
(x - 3)(x + 2)
x2 - x - 6
Factor out the GCF
5a3+2a2
a2(5a+2)
Factor:
z2 - 4z - 21
(z+3)(z-7)
Solve by factoring:
3x2 - 3x - 60=0
x=-4 and x=5
Definition of Factor Theorem is _____________.
A polynomial, P(x), has as a factor of (x-a) if P(a)=0 and a>0<a.
Is negative four a natural number?
No
Multiply the Polynomials:
(2m - 1)(m + 2)
2m2 + 3m - 2
Factor:
2x2 - 8
2(x+2)(x-2)
Factor:
-5y2 - 22y - 8
(-5y-2)(y+4)
Solve by factoring:
-5x2 + x = -4
x=-4/5 and x=1
Using factor theorem what is the value of P(3) for x2+6x-8? Is it a factor?
P(3) = (3)2+6(3)-8 = 9+18-8 = 26
What is the only temperature that is the same in Fahrenheit and Celsius?
-40 degrees Celsius
Multiply the Polynomials:
(4n - 1)(3n + 4)
12n2 + 13n - 4
Factor:
4p2 - 256
4(p+8)(p-8)
Factor:
x2 - 3x + 4ax - 12a
(x+4a)(x-3)
Solve by factoring:
30x2 - 4 = 2x
x=2/5 and x=-1/3
Find the mistake:
P(x) = x2-9x+8
P(1) = 12-9(1)+8 =1-9+8 = 0
P(-1) = (-1)2-9(-1)+8 = 1-9+8 = 0
P(-1) = (-1)2-9(-1)+8 = 1+18+8 =27
What is the only number spelled with letters in alphabetical order?
Forty
Multiply the Polynomials:
(d + 3)(d2 - 4d + 1)
d3 - d2 -11d + 3
Factor out the GCF
18n4+42nm+6n
6n(3n^3+7m+1)
Factor:
n3 - 9n
n(n+3)(n-3)
Solve by factoring:
5n2 - 40n = 0
n=0 and n=8
What are the possible guesses for (x-a) to plug into P(a)?
2x2 + 3x - 2
1, -1, 2, -2, 4, -4
How many seconds are in one day?
86,400 seconds