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i would say that x = 4
* * * * *
I, on the contrary, would say that x = 4 or 0.
The equation is:
2x2 - 8x = 0;
and it factorises as:
2x(x - 4) = 0; whence,
x = 4 or 0.
Also, you can check your result:
2(0)2 = 0 = 8(0); and
2(4)2 = 32 = 8(4).
This shows that we must be doing something right.
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What is 8x times 2x?
To find the product of 8x and 2x, you multiply the coefficients (8 and 2) to get 16, and then multiply the variables (x and x) to get x^2. Therefore, 8x * 2x equals 16x^2.
Factor 2x squared plus 8x plus 6?
2(x + 3)(x + 1)
What is the answer to 8x - 4 equals 2x - 3?
x = 1/6
How do you factor 4x squared - 16?
(2x + 4)(2x - 4) to check your answer, use the FOIL method (first, outside, inside, last) F.... 2x x 2x = 4x^2 0.... 2x x -4 = -8x I..... 2x x 4 = 8x L.... 4 x -4 = -16 so 4x^2 - 16 = (2x + 4)(2x - 4)
How do you work out 8x plus 6 equals 2x plus 24?
8x + 6 = 2x + 24 To solve, collect like terms on each side; collect the x's on the left, the numbers on the right: 8X + 6 = 2x + 24 8x - 2x = 24 - 6 6x = 18 6x / 6 = 18 / 6 x = 3
