Algebra I: Factoring when a=1
In simple factoring, you are looking for two numbers that add to b and multiply to WHAT?
c
When a is not 1, the trinomial must be factored by WHAT
grouping
When adding and subtracting, I need WHAT to be the same before I begin?
the exponents on 10
When dividing in scientific notation, you do WHAT to get the exponent of your answer?
subtract the exponents
When 10 is to a positive power, it means to move your decimal place in what direction?
to the right
Factor x^2+5x+6
(x+3)(x+2)
When factoring in this way, you look for two numbers that add to b and multiply to WHAT?
a*c
When adding and subtracting in scientific notation, you do WHAT to get the exponent of your answer?
keep it the same
When multiply in scientific notation, you do WHAT to get the exponent of your answer?
add the exponents
When 10 is to a negative power, it means to move your decimal place in what direction?
to the left
Factor x^2-8x-20
(x-10)(x+2)
Factor 3x^2-2x-5
(3x-5)(x+1)
What is (2*10^6)+(4*10^6)?
6*10^6
What is (3*10^4)(2*10^5)?
6*10^9
What is 1.3*10^4 in standard form?
13,000
(x+3)(x-3)
Factor 5x^2+19x+12
(5x+4)(x+3)
What is (8*10^3)-(4*10^3)?
4*10^3
What is (6*10^8)/(3*10^6)?
2*10^2
What is 4.2*10^-4 in standard form?
0.00042
Factor x^2-144
(x+12)(x-12)
Factor 3x^2-10x+8
(3x-4)(x-2)
What is (2*10^7)-(5*10^6)?
1.5*10^7
What is (5*10^3)(6*10^5)?
3*10^9
What is 31*10^6 in scientific notation?
3.1*10^7