Using I forgot who's thingummy math thing
change sign thing
ah, descartes rule of signs, thank you google
replace x with -x
simplify
count the number of times the sign changes between terms
if the number is 2 or more, keep subtracting 2 until you reach 0 or 1
so
if we replace x with -x we get
-x^5+2x^3+7x^2-2x-2
(-), (+), (+), (-), (-)
2 changes
2-2=0
so 2 or 0 possible negative real roots
Answer:
Do what exactly? Send a picture or an equation.
You can't add the letter so ?
Answer:
An irrational number is a number which cannot be expressed in a ratio of two integers. In rational numbers, both numerator and denominator are whole numbers, where the denominator is not equal to zero. While an irrational number cannot be written in a fraction.
Step-by-step explanation: Cuz i said so
Answer:
hmmmm lemme think
Step-by-step explanation:
