trankhanh261008 trankhanh261008
  • 15-08-2021
  • Mathematics
contestada

tìm x a)
4x^2-12x=-9

Respuesta :

redbudtree84 redbudtree84
  • 15-08-2021

Hi

Just told you :  first know by heart remarkable identities !  

Then apply :  

4x²-12x = -9

4x²-12x +9 =0

(2x-3)² = 0

(2x-3) (2x-3)  = 0

Now you have a double solution :

2x-3 = 0

and 2x -3 = 0

I let you try !

Answer Link

Otras preguntas

If p=5 what is the value of 6p-4?
An elected leader in a parliamentary democracy is called a prime minister. a. True b. False
what types of technologies make up a comprehensive system
round each decimals to the nearest whole number 6.7
Jason and his 3 roommates share the cost of the electric bill evenly
To go from Ur to the Halys River, one would travel more than 600 miles northwest. a. Yes b. No
What two facts can you double to find 8x4?
Discuss the tensions between England and Spain, explaining why Spain wanted war with England.
Every mineral is an element or compound given example of a mineral that is an element and a mineral that is compound
Which sentence best explains why critics argue against social welfare programs? The programs give people time to locate employment and shelter. The programs' co