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Simplifying (2x + 1)(x + -5) = 2x2 + -2 Reorder the terms: (1 + 2x)(x + -5) = 2x2 + -2 Reorder the terms: (1 + 2x)(-5 + x) = 2x2 + -2 Multiply (1 + 2x) * (-5 + x) (1(-5 + x) + 2x * (-5 + x)) = 2x2 + -2 ((-5 * 1 + x * 1) + 2x * (-5 + x)) = 2x2 + -2 ((-5 + 1x) + 2x * (-5 + x)) = 2x2 + -2 (-5 + 1x + (-5 * 2x + x * 2x)) = 2x2 + -2 (-5 + 1x + (-10x + 2x2)) = 2x2 + -2 Combine like terms: 1x + -10x = -9x (-5 + -9x + 2x2) = 2x2 + -2 Reorder the terms: -5 + -9x + 2x2 = -2 + 2x2 Add '-2x2' to each side of the equation. -5 + -9x + 2x2 + -2x2 = -2 + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -5 + -9x + 0 = -2 + 2x2 + -2x2 -5 + -9x = -2 + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -5 + -9x = -2 + 0 -5 + -9x = -2 Solving -5 + -9x = -2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -9x = -2 + 5 Combine like terms: -5 + 5 = 0 0 + -9x = -2 + 5 -9x = -2 + 5 Combine like terms: -2 + 5 = 3 -9x = 3 Divide each side by '-9'. x = -0.3333333333 Simplifying x = -0.3333333333
| 8.1*(-0.03)= | | -48*(-8)= | | (y^3)3= | | (5)(-7/10)= | | 8x+9=29 | | 8x+8=26 | | 9x+10=27 | | 8x+9=26 | | 9x+10=28 | | 9x+10=29 | | 9x+10=25 | | 14(3.5)= | | 10x+0.9=21 | | 10x+0.99=21 | | -4.2-(-3.8)+1.5= | | 4x+0.6=8 | | 7+(-6)-3= | | 4x+0.6=6 | | 4x+0.5=6 | | 6x+0.5=6 | | 5x+0.5=6.5 | | 5x+0.5=5 | | 5x+0.5=6 | | 5x+0.5=7 | | 5x+0.5=8 | | 5x+0.10=10 | | 11x+0.9=10 | | -1.043-4= | | 10x+0.9=10 | | 10x+0.5=1 | | 2x+0.5=10 | | 5x+0.8=10 |