math factoring Flashcards

1
Q

how to expand polynomials

A

-Use FOIL
f= first
o= outside
i=inside
l= last
-Then collect like terms

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2
Q

how to factor by grouping

A

-separate into 2
-find GCF
-devide everything by gcf
-simplify

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3
Q

how to factor simple trinomials

A

form: ax2+bx=C
where a = 1
To factor a simple trinomial find numbers “r” “s” that add to b and multiply to c
-then create 2 sets of brakets with the numbers found

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4
Q

how to factor complex trinomals

A

-find 2 numbers that add to b and multiply to a times c
using thoese 2 numbers found break up b and factor by grouping

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5
Q

how to fact a perfect square trinomal

A

-square root first and last term
-create one set of brackets rasied to the power of 2
-have the sign in the middle of the middle number

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6
Q

how to factor difference of squares

A

-to reconize dfference of squares must have 2 terms seperated by a minus sign
-square root both numbers
-craete 2 sets of brackets with a and b spartead by opposite signs

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7
Q

area of a circle

A

Pie r squared

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8
Q

area of a sqaure

A

side squared

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9
Q

area of a rectangle

A

length x width

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10
Q

area of a trinagle

A

base times hight divided by 2

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11
Q

volume of a rectangular prism

A

length x width x hight

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