victoriaciesielska17 victoriaciesielska17

10-02-2015
Mathematics

contestada

factorise y to the power of 2 -y -72

Respuesta :

10-02-2015

[tex]y^2-y-72=0\ \ \ | write\ -y\ as\ 8y-9y\\\\ y^2+8y-9y-72=0\\\\y(y+8)-9(y+8)=0\\\\(y-9)(y+8)=0\\\\ y=9\ or\ y=-8[/tex]

Answer Link

Otras preguntas

How are the words my, your, his, her, and ours related? A: they are possessive pronouns B: they are demonstrative nouns. C: they are reflexive pronouns. D: they

DITO PO ANGSAKAYANSM BACOORPALA PALATRECE

who are the characters in chapter 7 hunger games book 1

Answer this question showing work. 2b − 7 ≥− 14 + 2b

The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below. Commute Time (minutes), x 5 15

5 is 1/2 of what number?pls help!!

the similarities between the gender binary and gender continuum

14. Translate the following words into an equation and then solve. Five more than twice a number is -3. Find the number.

what is the theme of the cat and the moon poem

3x + x- 2x + 8 = 3x + x