Alakbar26 Alakbar26

15-09-2021
Mathematics

contestada

Identify the factors of x2 − 4x − 21. (x − 7)(x + 3) (x + 7)(x − 3) (x + 21)(x − 1) (x − 21)(x + 1)

Respuesta :

Аноним Аноним

15-09-2021

x^2-4x-21

= x^2-7x+3x-21

= x(x-7)+3(x-7)

= (x-7)(x+3)

The factor of x^2-4x-21 is (x-7)(x+3).

Answer Link

Otras preguntas

PLEASE HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLEASEEEEEEEEEE AND DO NOT LOOK IT UP ON ANY SOURCE THANK YOU AND ILY

The index of refraction of a certain material is 1.5. If I send red light (700 nm) through the material, what will the frequency of the light be in the material

do side lengths 8,7 and 15 create a triangle ?

what kingdom is penicillum belongs to?

Choose the sentence that most logically follows from the statement below. Mi hermano pequeño siempre necesita toda la atención de la familia. A. Él cree que es

The length of arcXY is 48cm. What is the circumference of circle Z?

The FDA recommends that Americans get on average 3,000mg of salt in their daily diet. Suppose that you are interested in testing if Americans' average daily int

What name is given to a process where a substance melts under pressure?

Find the ratio of x to y. 2/3 4/9 1

here are members on the board of directors for a certain non-profit institution. a. If they must elect a chairperson, first vice chairperson, second vice ch