It is: 30x+80 -8x = 22x+80 when simplified
4x2+49x+90 = (4x+9)(x+10) when factored
Subtract the stuff on the right from the stuff on the left. Get 4x2 - 22x + 10 = 0 Factor that. 2(x - 5)(2x - 1) = 0 x = 5, 0.5 Check it. 125 - 60 + 10 = 25 + 50 (75 = 75) Check. 1.25 - 6 + 10 = 0.25 + 5 (5.25 = 5.25) Check.
It's a quadratic expression which can't be factorized because its discriminant is less than zero.
4x2+2x-20 2x2+x-10 2x2+5x-4x-10 x(2x+5)-2(2x+5) (x-2)(2x+5)
It is: 30x+80 -8x = 22x+80 when simplified
4x2+49x+90 = (4x+9)(x+10) when factored
10
4x2-42x+110 = (2x-10)(2x-11) when factored
Subtract the stuff on the right from the stuff on the left. Get 4x2 - 22x + 10 = 0 Factor that. 2(x - 5)(2x - 1) = 0 x = 5, 0.5 Check it. 125 - 60 + 10 = 25 + 50 (75 = 75) Check. 1.25 - 6 + 10 = 0.25 + 5 (5.25 = 5.25) Check.
2(2x^2 + 2x - 5)
It's a quadratic expression which can't be factorized because its discriminant is less than zero.
4x2+2x-20 2x2+x-10 2x2+5x-4x-10 x(2x+5)-2(2x+5) (x-2)(2x+5)
2.2+10.x+12.x+3 =4+10.x+12.x+3 =22x+7 This is assuming you just needed to simplify. The "." are just multiplication signs.
(x + 1)(x - 2)(x + 5)
(x-2)(x+1)(x+5)
9. And the word is minus, not minis.