alextheman0131 alextheman0131
  • 26-05-2020
  • Mathematics
contestada

Factor completely.
4x^2 - 28x + 40 =

Respuesta :

Аноним Аноним
  • 26-05-2020

Answer:

(x - 2)(x - 5)

Step-by-step explanation:

First divide by 4.

x^2 - 7x + 10

See which numbers multiply to 10 and add to -7.

-2 and -5

(x - 2)(x - 5)

Answer Link
alearmanino19
alearmanino19 alearmanino19
  • 25-02-2021

Answer:

4(x-2)(x-5)

Step-by-step explanation:

Factor x^2-7x+10x  

2

−7x+10x, squared, minus, 7, x, plus, 10

\begin{aligned} &\phantom{=}4x^2-28x+40 \\\\ &=4(x^2-7x+10) \\\\ &=4(x-2)(x-5) \end{aligned}  

​  

 

=4x  

2

−28x+40

=4(x  

2

−7x+10)

=4(x−2)(x−5)

​

Answer Link

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