If you mean: 3(2+4x) = 42 then the value of x works out as 3
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4x+32=-4x+16x4x+32=12x-4x -4x32=8x/8 /84=x
48-4x-13=4x+32+x First combine like terms So 48-13-4x=35-4x 4x+x+32=5x+32 Get the x by itself by subtracting the 32 from both sides 35-4x=5x+32 -32 -32 3-4x=5x +4x +4x 3=9x Divide both sides by 9 to get x by itself 3/9=x Simplify 1/3=x
x2 + 4x - 32 = (x + 8)*(x - 4)
x2+4x-32 = (x-4)(x+8) when factored
4x +32 can be factorised as 4(x + 8). Other than that there is not much you can do with the expression.