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Simplifying 2cos2(4x) + -1 = 0 Remove parenthesis around (4x) 2cos2 * 4x + -1 = 0 Reorder the terms for easier multiplication: 2 * 4cos2 * x + -1 = 0 Multiply 2 * 4 8cos2 * x + -1 = 0 Multiply cos2 * x 8cos2x + -1 = 0 Reorder the terms: -1 + 8cos2x = 0 Solving -1 + 8cos2x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 8cos2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 8cos2x = 0 + 1 8cos2x = 0 + 1 Combine like terms: 0 + 1 = 1 8cos2x = 1 Divide each side by '8os2x'. c = 0.125o-1s-2x-1 Simplifying c = 0.125o-1s-2x-1
| X^4-x^2=14x^2+16 | | 5n^2-2(7n-3n^2)= | | 8x+7y=2 | | (x^3-4x^2+4x)(2x-3)=0 | | 14+45x=-17 | | 3(2*2)=5 | | (5/2)2 | | 10r-20=3r+8 | | 5(x+-21)+-4=6 | | 9/5*-5 | | =(18x+24)(x-18) | | -539=7(-7x-7) | | log(4)(36)=2 | | log(4)(36)= | | =(18x+24)(x-12) | | -460=10(7x+3) | | -5(4y)-4+4(7y+7)= | | -5(47)-4+4(7y+7)= | | -x+21=30 | | 3x-19=-4x+4 | | 4x(8x+9)=5 | | 10(13+-5x)=470 | | 470=(13+-5x) | | 76-6x=12x+18 | | 10(-5x+13)=470 | | -7(x+2)-10=14+14 | | =(12x+16)(x-12) | | y=7/3 | | y=0.428571428571429000000 | | 214/100 | | -539=7(9x+13) | | -p+4(2p-3)+3= |