5x2 + 20 = 5*(x2 + 4) which cannot be factorised further.
5(x + 2)(x - 2)
(5x - 4)(x - 5)
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
By splitting the Middle Term, 5X2 + 25X + 4X +20 5X(X+5) + 4(X+5) (5X+4)(X+5)
5x2 + 20 = 5*(x2 + 4) which cannot be factorised further.
5(x + 2)(x - 2)
(5x - 4)(x - 5)
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
By splitting the Middle Term, 5X2 + 25X + 4X +20 5X(X+5) + 4(X+5) (5X+4)(X+5)
5x2 + 3x - 1 does not have rational factors.
5x2-46x+9 = (5x-1)(x-9)
5x2 + 20x = 5x (x + 4)
5x2-18x+9 = (5x-3)(x-3)
x(5x - 4)
With great difficulty!
5x2