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Simplifying (2x + 5)(2x + -5) = 0 Reorder the terms: (5 + 2x)(2x + -5) = 0 Reorder the terms: (5 + 2x)(-5 + 2x) = 0 Multiply (5 + 2x) * (-5 + 2x) (5(-5 + 2x) + 2x * (-5 + 2x)) = 0 ((-5 * 5 + 2x * 5) + 2x * (-5 + 2x)) = 0 ((-25 + 10x) + 2x * (-5 + 2x)) = 0 (-25 + 10x + (-5 * 2x + 2x * 2x)) = 0 (-25 + 10x + (-10x + 4x2)) = 0 Combine like terms: 10x + -10x = 0 (-25 + 0 + 4x2) = 0 (-25 + 4x2) = 0 Solving -25 + 4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + 4x2 = 0 + 25 Combine like terms: -25 + 25 = 0 0 + 4x2 = 0 + 25 4x2 = 0 + 25 Combine like terms: 0 + 25 = 25 4x2 = 25 Divide each side by '4'. x2 = 6.25 Simplifying x2 = 6.25 Take the square root of each side: x = {-2.5, 2.5}
| x=80000*5/(80000+4700) | | 3t+2(t+4)=13 | | x=1*5/(1+4700) | | 5(m-3)=2m | | x=500*5/(500+4700) | | 11=s-4s+5 | | -3.2y-1.4y=9.2 | | 7x-5x=4 | | 4x+56=-4x | | x^3-6x^2-7x=0 | | 1.5x^4-5x^3-16x^2=0 | | x=20000*5/(20000+4700) | | 3=8x-5(3x+5) | | x=100000*5/(100000+4700) | | 8(2-3t)+7t-13=t+24 | | x=4700*5/(100000+4700) | | 12x-7(x+2)=10(x-1)-(5x+4) | | 7x=7(7)+85-6(8) | | 6q+8=7q+8 | | 2x+4y=36 | | -2x-2x=26-2 | | 6x=95 | | 4(5x+2)-3(x-2)=10x+(7x+9) | | x^2+5=8X-10 | | (13-z)z=0 | | x^2-2X-8=7 | | -2(5z-4)+6z=-4 | | 8+4(5x-2)=20x | | 2m+1-m=4 | | 3d-5=-1 | | d-8=9 | | (2a-3)(2a+3)=0 |