Algebra 2 practice 3B

Pascal's Triangle - Row 3

1 3 3 1

Pascal's Triangle - Row 4

1 4 6 4 1

Pascal's Triangle - Row 5

1 5 10 10 5 1

Pascal's Triangle - Row 6

1 6 15 20 15 6 1

Pascal's Triangle - Row 7

1 7 21 35 35 21 7 1

odd exponent, positive leading coefficient

down, up

odd exponent, Negative leading coefficient

up, down

even exponent, positive leading coefficient

up, up

even exponent, negative leading coefficient

down, down

Quadratic formula

x=−b plus/minus square root b2−4ac /2

sum of two cubes

a3 + b3 = (a+b)(a2-ab+b2)

difference of two cubes

a3 - b3 = (a-b)(a2+ab+b2)

degree example

5 of 9x^5

leading coefficient example

9 of 9x^5

max number of turns

degree -1

rational roots

x-values where a polynomial equals zero, comes from p/q equation

roots

same thing as zero

how to solve for y-int

replace the x’s with zero and solve