gilhulywilliam
gilhulywilliam gilhulywilliam
  • 24-05-2021
  • Mathematics
contestada

i need help with this problem x²+4x﹣30=﹣3x

i need help with this problem x4x303x class=

Respuesta :

sreedevi102
sreedevi102 sreedevi102
  • 24-05-2021

Answer:

[tex]x^2 + 4x -30 = -3x\\x^2 + 4x +3x -30 = 0\\x^2 + 7x -30 = 0\\x^2 +10x -3x -30 = 0\\x(x+10) -3(x+10)\\(x-3)(x+10) = 0\\x = 3, -10[/tex]

Answer Link
swagxx
swagxx swagxx
  • 24-05-2021
x=-10, 3

first, move -3x to the other side of the equation.
your equation should look like this
x²+4x-30+3x=0
add like terms
x²+7x-30+=0
now factor.
(x+10)(x-3)=0
solve for x
x=-10, 3
Answer Link

Otras preguntas

ABCD is a rectangle with AC=20 and AB=2BC. What is the area of rectangle ABCD?
I need to know what is Constructive Criticism?
can she buy enough packs ?
Explain how Earth's magnetic field and ozone layers protect it .
Find geometric mean between 3 and 6
It was 96 kilometers from perry to medford. David raced to medford and idled back. If the round trip took 8 hours, what was his average speed in kilometers per
The probability of Roger winning the tournament, given that Stephan wins, is 0. The probability of Stephan winning the tournament, given that Roger wins, is 0.
Explain how Earth's magnetic field and ozone layers protect it .
If my final exam is worth 30% and my class average is 80, what do I need to get to pass the exam?
Who is Prince Charming? Thanks in advance