Verified answer

3x² has multiples of 1x and 3x, and

-1 has multples of 1 and -1; so,

(x+1)(3x-1)=0

set each to 0 now

x+1=0; thus, x+1-1=0-1; x = -1

3x+1=0; thus, 3x+1-1=0-1; 3x = -1; x = -1/3

a million. 8x² + 6x + a million = 0 = (4x + a million)(2x + a million) So, x = -a million/4 or x = -a million/2 2. -4x² + 5x + 6 = 0 = -a million(1x - 2)(4x + 3) So x = a million/2 or x = -3/4 3. 8x² – 10x – 25 = 0 =(2x - 5)(4x + 5) So, x = 5/2 or x = -5/4 4. -3x² – 2x + a million = 0 = -a million(3x - a million)(1x + a million) So, x = a million/3 or x = -a million those outcomes ought to be checked interior the unique equation, I did! I verify each time, this is the reason I hardly make an blunders. ProfRay playstation : arithmetic is a technique of remembering varieties. The greater varieties you could recognize the simpler arithmetic seems. It takes attempt. many that ask questions here have not taken the time to become attentive to and remember those varieties.