03-05-2017
Mathematics

contestada

K2-4K-21. How do you factor this

Respuesta :

apologiabiology apologiabiology

03-05-2017

assuming yo mean
k²-4k-21

factor by doing
what 2 numbers multipily to get -21 and add to get -4?
-7 and 3

(k-7)(k+3) is factored

Answer Link

Otras preguntas

Grains are are rich in which nutrient? a. carbohydrates b. fats c. proteins d. vitamins

What is the solution set for 3x+2=14 given the replacement set 1,2,3,4

The energy for protein synthesis is generated by the _____. A. Golgi body B. mitochondria C. rough ER D. ribosome

Ling has 48 pictures to put into an album she can fit 6 pictures on each page.how many pages will ling neend?write an equation using the letter n to stand for t

How many milliliters of 3.50 m hcl(aq) are required to react with 5.25 g of zn(s)?

a 40 kilogramstudent runs up a staircase to a floor that is 5.0 meters higher than her starting point in 7.0 seconds. the student's power output is

Can someone please tell me how to step by step to do this?

Identify two oral conditions related to nutritional factors.

Phillis Wheatley's poem in praise of evening contains many descriptive details about the natural world. Would it be possible to praise evening in a poem contain

It takes Bobby and Jeremy 15 minutes to set up 5 tables. If Bobby and Jeremy work at a constant rate, which best describes a possible constant of proportionalit