0
x2+8x = -3x2+5
4x2+8x-5 = 0
(2x+5)(2x-1) = 0
x = -5/2 or x = 1/2
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∙ 13y ago
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What is x2 8x-3x2 5 in ax2 bx c0?
Assuming the 2 is meant to be a square this is the form: x2 - 3x2 = -2x2 + 8x + 5
X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
X2 plus 8x-6 equals 0?
x2 + 8x - 6 = 0 x2 + 8x + 16 = 22 (x + 4)2 = 22 x + 4 = ± √22 x = -4 ± √22
What is x2 plus x2 plus x2?
x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2
How many solutions are there for the equation x2 plus 16 equals 8x?
2 this Domo
X2 - 3 equals -3x2 plus 8x?
In general, no.
Put the equation in the form ax2 plus bx plus c equals 0 x2-3 equals 3x2 plus 8x?
2x^2 + 8x + 3 = 0
What is x2 8x-3x2 5 in ax2 bx c0?
Assuming the 2 is meant to be a square this is the form: x2 - 3x2 = -2x2 + 8x + 5
X2-8x plus 32 equals 0?
no
X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
Calculate the roots of X2 plus 8X equals -7?
x=-0.7
Can you put the equation x2 - 5 -4x2 plus 3x equals 0 in the form ax2 plus bx plus c equals 0?
x2-5-4x2+3x = 0 -3x2+3x-5 = 0 or as 3x2-3x+5 = 0
X2 plus 8x-6 equals 0?
x2 + 8x - 6 = 0 x2 + 8x + 16 = 22 (x + 4)2 = 22 x + 4 = ± √22 x = -4 ± √22
What is x2 plus x2 plus x2?
x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2
How many solutions are there for the equation x2 plus 16 equals 8x?
2 this Domo
The quadratic formula x2 plus 8x - 5 equals 0?
x2 + 8x - 5 = 0 ∴ x2 + 8x + 16 = 21 ∴ (x + 4)2 = 21 ∴ x + 4 = ± √21 ∴ x = -4 ± √21
What does x equal in x2-8x equals 0?
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)
