3X = x2 - 2xsubtract 3X from each sideX2 - 5X = 0factor out an XX(X - 5) = 0=========X = 0--------orX = 5--------
NOTE: xx can be written as x^2 i.e. x squared 3x^2 + 16x + 5 = 3 x^2 + x + 15x + 5 (Since 16x = x + 15x) = x ( 3x + 1 ) + 5 ( 3x + 1 ) = ( x + 5 ) ( 3x + 1 ) Therefore the factors are ( x + 5 ) and ( 3x + 1 )
8-3x=238-8-3x=23-8 subtract 8 from both sides-3x=15-3x/-3 = 15/-3 divide both sides by -3 to solve for xx = -5
3x-5=3x+5 There is no solution.
Subtract 5 from each side: 16 = 5x + 3x ie 16 = 8xDivide each side by 8: 2 = x21 = 5x + 3x + 521 - 5 = 8x16 = 8x16/2 = x2 = xx = 2Check:21 = 5(2) + 3(2) + 521 = 10 + 6 + 521 = 21
3X = x2 - 2xsubtract 3X from each sideX2 - 5X = 0factor out an XX(X - 5) = 0=========X = 0--------orX = 5--------
NOTE: xx can be written as x^2 i.e. x squared 3x^2 + 16x + 5 = 3 x^2 + x + 15x + 5 (Since 16x = x + 15x) = x ( 3x + 1 ) + 5 ( 3x + 1 ) = ( x + 5 ) ( 3x + 1 ) Therefore the factors are ( x + 5 ) and ( 3x + 1 )
8-3x=238-8-3x=23-8 subtract 8 from both sides-3x=15-3x/-3 = 15/-3 divide both sides by -3 to solve for xx = -5
The rear track of the 2012 Infiniti QX is 5 ft. 7.9 in. (67.9 in.).
The front track of the 2013 Infiniti QX is 5 ft. 7.5 in. (67.5 in.).
The front track of the 2012 Infiniti QX is 5 ft. 7.5 in. (67.5 in.).
The rear track of the 2013 Infiniti QX is 5 ft. 7.9 in. (67.9 in.).
3x^5 If these are 5 of 3x multiplied together the it must be (3x)^5 =3^5 times x^5
3x-5=3x+5 There is no solution.
Subtract 5 from each side: 16 = 5x + 3x ie 16 = 8xDivide each side by 8: 2 = x21 = 5x + 3x + 521 - 5 = 8x16 = 8x16/2 = x2 = xx = 2Check:21 = 5(2) + 3(2) + 521 = 10 + 6 + 521 = 21
8
Let x be the smallest number.So,x + (x + 5) = 3x - 32 x + 5 = 3x - 32x - 2x 5 + 3 = 3x - 2x -3 + 38 = xx + 5 = 8 + 5 = 13the smallest number is 8, and the other number is 13.