3x2+26x+16
When factorised:
(3x+2)(x+8)
(x2 + 26x +) : syntax error.x2 + 26x
27
16? using 16, you have (3x2 + 4)(3x2 + 4) = 9x2 + 24x + 16
x2 + 26x + 48 = (x + 24)(x + 2)
I'm guessing that's 35x^2 + 26x - 16 which factors to (5x - 2)(7x + 8)
3x2 + 27x +60
3x2 + 2x = 16 ∴ 3x2 + 2x - 16 = 0 ∴ 3x2 - 6x + 8x - 16 = 0 ∴ 3x(x - 2) + 8(x - 2) = 0 ∴ (3x + 8)(x - 2) = 0 ∴ x ∈ {-8/3, 2}
.740
5 + 6 - 32 = -21 negative 21 :)
8x2 + 15 + 26x = 8x2 + 26x + 15 = 8x2 + 20x + 6x + 15 = 4x(2x + 5) + 3(2x + 5) = (2x + 5)(4x + 3)
3x2=6+38=44
It is: 8 times 2 plus 3 times 2 = 22