Which of the following are solutions to the equation below?
2 answers:
Answer:
Option B and D
Step-by-step explanation:
Subtract 9 from both sides :
4x² + 4x - 8 = 0
Divide both sides by 4 :
x² + x - 2 = 0
Factorise using factorisation method :
x² - x + 2x -2 = 0
x(x - 1) +2(x-1) = 0
(x+2)(x-1) = 0
Solve for x
x +2 = 0 OR x - 1 = 0
x = -2 OR x = 1
Answer will be Option B and D
Hope this helped and have a good day
Answer:
option b. –2 and d. 1 are correct.
*For detailed explanation refer to the attachment
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The answer to the question is 4 hours. After 4 hours they will have learned $60.
Answer:
hope this is not to hard to understand
Answer:
x=5/2, -4.
Step-by-step explanation:
3(2x-5)(x+4)=0
(2x-5)(x+4)=0/3
(2x-5)(x+4)=0
2x-5=0, x+4=0
2x=0+5,
2x=5,
x=5/2,
x+4=0
x=0-4=-4
Answer:
math
Step-by-step explanation:
have got a question which is as follow: Determine x,y,z∈R such that 2x2+y2+2z2−8x+2y−2xy+2xz−16z+35=0. This is a quite filthy looking equation
Well, a circle is 360 degrees so...
2/9 of 360 = 80
The answer is 80 degrees.
I hope this helps; and if I'm wrong, then I'm very sorry. :)
