y4asm0icTmastecessja
y4asm0icTmastecessja y4asm0icTmastecessja
  • 11-07-2016
  • Mathematics
contestada

which function has real zeros at x = 3 and x = 7? f(x) = x2 4x – 21 f(x) = x2 – 4x – 21 f(x) = x2 – 10x 21 f(x) = x2 – 10x – 21

Respuesta :

caylus
caylus caylus
  • 13-07-2016
Hello,

f(x)=(x-3)(x-7)=x²-10x+21

Answer C

Answer Link
erato erato
  • 24-07-2019

Answer:

Function which has real zeros at x = 3 and x = 7 is:

f(x)= x²-10x+21

Step-by-step explanation:

function has real zeros at x = 3 and x = 7

⇒ (x-3)(x-7)=0

⇒ x(x-7)-3(x-7)=0

⇒ x²-7x-3x+21=0

⇒ x²-10x+21=0

f(x)= x²-10x+21 has real zeros at x=3 and x=7

Hence, function which has real zeros at x = 3 and x = 7 is:

f(x)= x²-10x+21

Answer Link

Otras preguntas

This assignment is due soon! If someone can help me answer this it would be amazing. It is about Transversals of Parallel lines: name angle pairs.
One sentence in the article states, “Our eyes are made of nerve tissue, blood vessel tissue, muscle tissue, lens tissue, pupil tissue, and many more types of ti
the relative velocity of two cars is 50m/s when they move in opposite direction and 10m/s when they move in same direction. what is the speed of each car
what’s the question mark?
How do you find matrices on a calculator?
Simplify the following expression. (14x + 9y) + (41x + 27y)
Which of these illustrates why a photographer might use proportion in a photograph? A. to accentuate the texture of an object B. to highlight an item in the
Lacteals require which muscles to flow
3a×(a-b)-2a×(a+b) Me ajudem por favor.
Which Form is the following equation in? y = −7(x + ²)² + 11 Vertex Form Standard Form Factored Form