EizaN782133 EizaN782133
  • 28-10-2022
  • Mathematics
contestada

Factor the expression X² +4 x-21 o(x-3)(x+7) o(x-7)(x+3) • (x+2)(x - 11.5) o (x +11.5)(x-2)

Factor the expression X 4 x21 ox3x7 ox7x3 x2x 115 o x 115x2 class=

Respuesta :

AngeleeP565692 AngeleeP565692
  • 28-10-2022
Answer:

(x-3)(x+7)

Explanations:

The given expression is:

[tex]x^2+4x-21[/tex]

This can be factorised as shown below:

[tex]\begin{gathered} x^2-3x\text{ + 7x - 21} \\ x\text{ (x - 3) + 7 (x - 3)} \\ (x\text{ - 3 ) ( x + 7)} \end{gathered}[/tex]

The factorised expression is (x-3)(x+7)

Answer Link

Otras preguntas

Three baseball fans estimated the top speed of a baseball pitcher’s fastball. The table shows their estimates. The top speed of the pitcher’s fastball is known
Who is the last prophet of Islam?
What is the product of its prime factors of 17?
The cell wall of fungi is composed of chitin, the same material found in the exoskeleton of a lobster. a. True b. False
how can i write a story problem that involves adding fractions with unlike denominators include the solution
Judith drove h hours at a rate of 55 mi/h. She did not reach her goal of driving 385 miles for the day. How long did she drive? Write an inequality and then sol
Whats the richest country in the universe?
Doing exercise can change the body and the way it functions. a. True b. False
What is f + 0.3 < 1.7 I need help solving this please can anybody help me I Tryed and I can't get the answer ?? ??? ??
When a pair of balanced forces acts on an object, the net force that results is?