12
(x+3)(x+4)=x2+7x+12
(x+3)(x+4) = x2+7x+12
Multiply out the factors and then you can check: (x + 2)(x + 3) = x² + 3x + 2x + 6 = x² + 5x + 6 ≠ x² + 3x + 4 Therefore False.
It is 123.99
6 / ( x + 4 ) = 2 / 3 1 - Multiply both parts by 3 3 * 6 / ( x + 4 ) = 2 2- Multiply both parts by (x+4) 3 * 6 = 2 * ( x + 4 ) 3 - Simplify 18 = 2x + 8 10 = 2x 5 = x
No. It simplifies to a monomial.
It depends. If you meant 8x-4=3x+1 then: 5x=5 x=1 But if you meant 8(x-4)=3(x+1) then: 8x-32=3x+3 5x=35 x=7
x/2+3=4 x/2=1 (take away 3 from both sides) x=2 (multiply both sides by two)
Question: 2 x 3 x 4 Answer: It's easier to break this down into separate parts. First, multiply 2 x 3 = 6 Then multiply 6 (which is 2 x 3) x 4 = 24 Therefore, 2 x 3 x 4 = 24
(x+3)(x+4) = x²+7x+12
4x + 4 or 4(x + 1)
(x + 3)(x + 4) = x2 + 7x + 12