x2+8x = -3x2+5 4x2+8x-5 = 0 (2x+5)(2x-1) = 0 x = -5/2 or x = 1/2
Assuming the 2 is meant to be a square this is the form: x2 - 3x2 = -2x2 + 8x + 5
x^5+2x^4+4x^2+2x-3
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
27
x2+8x = -3x2+5 4x2+8x-5 = 0 (2x+5)(2x-1) = 0 x = -5/2 or x = 1/2
x2-5-4x2+3x = 0 -3x2+3x-5 = 0 or as 3x2-3x+5 = 0
Assuming the 2 is meant to be a square this is the form: x2 - 3x2 = -2x2 + 8x + 5
x^5+2x^4+4x^2+2x-3
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
27
(x3 - 3x2 + 4x - 7) - (2x3 + x2 - 3x - 5)
x3 + 3x2 - 9x + 5 = 0 has roots of -5,1 and 1. CHECK : x3 + 3x2 - 9x + 5 = (x + 5)(x - 1)(x - 1)
X = 5 or -5 3x2 - 42 = 33 3x2 = 75 x2=25
(3x2)+5=11
(x + 1)(3x + 5)
No. If I said 13x2, that would be 26. Then +5 equals 31, so no.