MAF

• INTERCEPT METHOD,
• set both values to zero

simultaneous equation

First, find the LCD to get rid of the fractions

x/2+y/3=1

becomes

6(x/2+y/3=1)

multiply by the least common denominator then cross divide.

equaling

2x+2y=6

do the same for the second

x/4-y=11

• multiply for the LCD
• then cross divide, equalling:

x-4y=44

then line each equation up and see which variables will cancel each other

• 6x+2Y=6
• x-4y=44

the Y will add up, only if they were positive and negative, so multiply by a 2.

• 2y
• -2y

cancel

solve for X,

• plug it in to the other equation.
• solve for Y

Do what ever operation to both sides

set up the equation

3.75+5(35)= ( x+35) (4.25)

multiply by a hunnet

375x + 5(35)(100)=(0+35)(425)

• first, line them up and subtract,
• FOLLOW THE FLOW

sum= subtract

• x²-x-8
• 5x+3
• ---------------
• x²+4-5

now the 2nd part, subtract

(3x-5) - (x²+4x-5)

• CHANGE THE SIGNS,
• then proceed to combine/do operations

Use the subtraction to flip the 2nd equation

use the exponent to split it into 2

(5x-7Y) (5x-7Y)

then FOIL

In order to simplify, you must first split them

• (x-y)(x-y)-(x+y)(x+y)
• then foil

x²-xy-yx+y² - (x²+xy+xy+y²)

then combine

Set it up,

• You want to find current speed,
• you don't know it so
• current speed = X

speed of wind= Y

tail wind= x+y

head wind is= x-y

• x+y=150
• x-y=90

add them together,

• 2x=240
• x=120

(5^-2+3^-1)^-1

First, change it into positive using the formula

• a^-2 = 1
• --
• 2^a

• so...
• (5^-2+3^-1)^-1
• 1 1 -1
• - + -
• 2⁵ 1³
• Then solve what's inside

move apples with apples,

• x5 z4 3
• -------
• Y

then apply the exponent

first move the decimal creating a number from 1-10

• 63425.93
• <------
• the number of times you move create the number

6.342593x10⁴

left is positive

right is negative

• make it a number from 1-10
• the number of decimal counts determine the positive or negative

• 2.4x10^-1 x 5x10^{-------------}
• 6x10-3

Take out the x

x(x²+7x+6)

then do the A C method

• x(x2+7x+6)
• ^

What can multiply to 6 and equal to 7? 6+1

x(2x+6x+x+6)

x(2x+6x)(x+6)

2x²(1+3x)(x+6)

find the square of the number

5² - Y<sup>2

then split it

(5-y)(5+y)</sup>

• x²-16=0
• ^
• what 2 numbers equal 16
• Now factor

(x+4)(x-4)

• x(x-1)=2
• distribute

• x²-x-2=0
• AC method will work.
• x-2)(x+1)=0

• Set them both to 0
• x=2 x=-1

• X=-B plus or minus(+ or -) square root B²-4AC
• ---------------------------------------------------------------
• 2A

• X=-B(+or-)squaroot(B2-4AC)
• 2A

A+B+C, fill it in, solve