michellewilliam michellewilliam
  • 15-06-2014
  • Mathematics
contestada

factor using ac-method,  15y+6y²-21= ________

Respuesta :

konrad509
konrad509 konrad509
  • 15-06-2014
[tex]15y+6y^2-21=\\ 6y^2+15y-21=\\ 3(2y^2+5y-7)=\\ 3(2y^2-2y+7y-7)=\\ 3(2y(y-1)+7(y-1))=\\ 3(2y+7)(y-1) [/tex]
Answer Link

Otras preguntas

divide 123kg in a ratio of 3:3:5
How to solve Slope Intercept Form equations?
Cuban Missile Crisis 1. What was the initial cause of the Cuban Missile Crisis?
HELP!!! Which sentences in this excerpt from Ernest Hemingway's "In Another Country" reflect the theme of the psychological alienation caused by war? We all had
What caused the consumer revolution of the 1920's? Please help
A bag contains 8 black marbles, 16 white marbles, 14 red marbles, and 10 green marbles. A marble is drawn at random from the bag. What is the probability that
What is the exact time of a full earth rotation?
What is the effect of James Russell Lowell's inclusion of the word us in the first stanza of "Life"? A. It suggests that the speaker is more intelligent than t
what is the formula for the nth of the sequence 6, 9, 12, 15, 18
explain why the arithmetic sequence: 1,14,27,40 contains many terms of the form 22222...22222 etc where only digit two appears. How many 2's appear in the seque