(x + 10)(x + 3)
vbh
x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
-2(2x^4 - 13x^3 + 15)
There's a factor pair of 30 that adds up to 11. (x + 5)(x + 6)
(x + 10)(x + 3)
vbh
x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
That is 9 + 16 + 5 which is 30.
(x - 10)(x - 3)
X^2 - 13X + 30 = 0 (X-3)(X-10) easy inspection problem
-2(2x^4 - 13x^3 + 15)
'A' squared plus 'B' squared equals 'C' squared. If 'A' and 'B' are the legs of the right angle comprising the sides of the box, 30 inches squared (900) plus 30 inches squared (900) equals 1800. The square root of 1800 is 42.426408711929.
There's a factor pair of 30 that adds up to 11. (x + 5)(x + 6)
13(x + 50) = 30 13x + 650 = 30 subtract 650 to both sides; 13x = -620 divide by 13 to both sides; x = -620/13
No, It's a a quadratic equation because you have X squared.
30 + 30 + 30 + 30 + 30 + 30 = 180