X3 + 13X2 + 40X factor out an X X(X2 + 13X + 40) factor the quadratic expression, what two factors of 40 add up to 13? X(X + 8)(X + 5) works the same if that is a negative in front of X3, just sign changes
26
x3 + 13x2 + 42x = x(x + 6)(x + 7).
no. it can be simplified into 13x2. 13 and 2 are prime.
13x1=13 13x2=26...etc
2x^3 - 3x^2 + 4x - 3
4x4 + 13x2 + 36 is a quadratic in x2. The discriminant is 132 - 4*4*36 = -407. Since the discriminant is negative, the expression has no real roots and so it cannot be factorised (in the normal sense of the term).
X3 + 13X2 + 40X factor out an X X(X2 + 13X + 40) factor the quadratic expression, what two factors of 40 add up to 13? X(X + 8)(X + 5) works the same if that is a negative in front of X3, just sign changes
-x2(5x5 + 13)
13x2=26 By Someone?
(x - 2)(x + 2)(x - 3)(x + 3)
13x2
26. 13x2=26.
26
x3 + 13x2 + 42x = x(x + 6)(x + 7).
13x2 2x13
13X2