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Simplifying (2x + 2)(2x + -1) = 2x + 7 Reorder the terms: (2 + 2x)(2x + -1) = 2x + 7 Reorder the terms: (2 + 2x)(-1 + 2x) = 2x + 7 Multiply (2 + 2x) * (-1 + 2x) (2(-1 + 2x) + 2x * (-1 + 2x)) = 2x + 7 ((-1 * 2 + 2x * 2) + 2x * (-1 + 2x)) = 2x + 7 ((-2 + 4x) + 2x * (-1 + 2x)) = 2x + 7 (-2 + 4x + (-1 * 2x + 2x * 2x)) = 2x + 7 (-2 + 4x + (-2x + 4x2)) = 2x + 7 Combine like terms: 4x + -2x = 2x (-2 + 2x + 4x2) = 2x + 7 Reorder the terms: -2 + 2x + 4x2 = 7 + 2x Add '-2x' to each side of the equation. -2 + 2x + -2x + 4x2 = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 -2 + 0 + 4x2 = 7 + 2x + -2x -2 + 4x2 = 7 + 2x + -2x Combine like terms: 2x + -2x = 0 -2 + 4x2 = 7 + 0 -2 + 4x2 = 7 Solving -2 + 4x2 = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 4x2 = 7 + 2 Combine like terms: -2 + 2 = 0 0 + 4x2 = 7 + 2 4x2 = 7 + 2 Combine like terms: 7 + 2 = 9 4x2 = 9 Divide each side by '4'. x2 = 2.25 Simplifying x2 = 2.25 Take the square root of each side: x = {-1.5, 1.5}
| 2d^2+9c+9= | | 2m+176=44+6m-2 | | 6x+45=3x | | 2p-7=13-8pa | | 3x+x+x+5+2x+3+x+5= | | 6x^2+2xz+3xy+yz=0 | | 2x+3(7)=13 | | 3x+29=5x-25 | | 15r^2+9rs+10rs+6s^2= | | 6y-7x=8 | | 2(2.125-0.875y)+3y=13 | | 15r^2+19rs+6s^2=15r^2+9rs+10rs+6s^2 | | sqrx+1=x-1 | | -8x-7y=-17 | | 2(8)+5(2)=19 | | 9f+5.6=10.8 | | 2(2)+5(4)=19 | | -2(6)-5(-1)=x | | 0.6(3y+6)=0 | | 4(10-11x)=9(x+2) | | 5x+7(-1)=23 | | 2(7)+5(1)=19 | | 64x^2+896x+3136=0 | | 3+5p=50 | | 5(3.5+-2.5y)+7y=23 | | b^2+5b+9b+45= | | 175/48= | | 4e+5=25 | | 4s+5=48.96 | | 10x+35=387 | | t+.03t=72 | | 12.4=5n-4 |