xaviernewton10 xaviernewton10
  • 11-06-2020
  • Mathematics
contestada

solve for 25x2 + 9 = 30x

Respuesta :

deshunti
deshunti deshunti
  • 11-06-2020

Answer: [tex]x=\frac{3}{5}[/tex]

Step-by-step explanation:

Move all terms to one side.

[tex]25x^2+9-30x=0[/tex]

Rewrite [tex]25x^2+9-30x[/tex] in the form [tex]a^2-2ab+b^2[/tex], where [tex]a=5x[/tex] and [tex]b=3[/tex]

[tex](5x)^2-2(5x)(3)+3^2=0[/tex]

Use the Square of Difference: [tex](a-b)^2=a^2-2ab+b^2[/tex]

[tex](5x-3)^2=0[/tex]

Take the square root of both sides.

5x-3=0

Add 3 to both sides.

5x=3

Divide both sides by 5.

x= 3/5

Answer Link

Otras preguntas

Which statement is true about f(x) = –6|x + 5| – 2? The graph of f(x) is horizontally compressed. The graph of f(x) is horizontally stretched. The graph of f(x)
The width, w, of a rectangle garden is x - 2. The area of the garden is x^3 - 2x - 4. What is an expression for the length of the garden? a. x^2 -2x - 2 b. x^2
what do hydrogen ions and hydroxide ions come together to form? a. a base b. water c.a tritant d. an acid
What Is The Square Root of 9
What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?
How old is michael douglas
Slope of the line that passes through points (-3,4) and (5,-1)
which one is the answer?
what was the name of the trading policy that secretary of state john hay initiated with china and the european nations that already had a presence there
From which of the following do spiral galaxies form? A.rapidly cooling protogalactic clouds high-density protogalactic clouds rapidly spinning protogalactic