10x - 25 = 4x + 510x - 4x = 25 + 56x = 30x = 5
Rearrange: x2 - 10x + 25 = 0ie (x - 5)(x - 5) = 0x = 5Check: x2 = 25; 10x - 25 = 50 - 25 = 25. Job done
10x+7 = 5x+32 10x-5x = 32-7 5x = 25 x = 5
5x + 4 = 10x - 5 10x - 5x = 4 + 5 5x = 9 x = 1.8
x2+10x+25
10x - 25 = 4x + 510x - 4x = 25 + 56x = 30x = 5
10x+5y = 25 5y = -10x+25 y = -2x+5 Therefore: the slope is -2 and the intercept is 5
x2 - 10x + 25 = 0(x - 5)(x - 5) = 0x - 5 = 0x = 5
x2 + 10x = 0 x2 + 10x + 25 = 25 (x + 5)2 = 25 x + 5 = +-5 x1 = 0 x2 =10
Rearrange: x2 - 10x + 25 = 0ie (x - 5)(x - 5) = 0x = 5Check: x2 = 25; 10x - 25 = 50 - 25 = 25. Job done
10x = 9x -25 10x -9x = -25 x = -25
(x + 5)(x + 5)
10x+7 = 5x+32 10x-5x = 32-7 5x = 25 x = 5
15
Twenty-Five x2 + 10x = 8 x2 + 10x + 25 = 8 + 25 (x + 5)2 = 33
5x + 4 = 10x - 5 10x - 5x = 4 + 5 5x = 9 x = 1.8
x2+10x+25