The answer to the math problem of 18 minus 4x equals negative 2 is x equals 5.
To justify something in math is to prove it. Example: Justify 4x = 8 when x = 2. When x = 2, 4(2) = 8. Done. By doing this I justified that 4x = 8 when x = 2.
x= 1.5 4x -2=4 <<< Original problem +2 +2 <<< reverse operations (problem requires subtraction, so add to solve) 4x=6 <<< New problem 4x/4=6/4 <<<reverse operations (new problem requires multiplication, so divide to solve) x=1.5 <<< answer
x2-4x-12 = (x-6)(x+2) when factored
Watch me as I do it. Perhaps you can pick up some pointers.-34 = 2 + 4xSubtract 2 from each side of the equation:-36 = 4xDivide each side by 4 :-9 = x
The answer to the math problem of 18 minus 4x equals negative 2 is x equals 5.
Oh, what a happy little math problem we have here! When you multiply 3x by 4x, you simply multiply the numbers together and add the exponents. So, 3x times 4x equals 12x^2. Just like painting a beautiful landscape, math can be a joyful experience when we approach it with a calm and positive mindset.
To justify something in math is to prove it. Example: Justify 4x = 8 when x = 2. When x = 2, 4(2) = 8. Done. By doing this I justified that 4x = 8 when x = 2.
If you mean 3x2+4x-2 = 0 then it can be solved by means of the quadratic equation formulla
x= 1.5 4x -2=4 <<< Original problem +2 +2 <<< reverse operations (problem requires subtraction, so add to solve) 4x=6 <<< New problem 4x/4=6/4 <<<reverse operations (new problem requires multiplication, so divide to solve) x=1.5 <<< answer
x2-4x-12 = (x-6)(x+2) when factored
4x
2+2=?
4x - 3 - 5x + 7 = 6 4x - 5x = 3 - 7 + 6 -1x = 2 x = -2
Watch me as I do it. Perhaps you can pick up some pointers.-34 = 2 + 4xSubtract 2 from each side of the equation:-36 = 4xDivide each side by 4 :-9 = x
4x times 2 = 8x
Oh, dude, 2x times 2x is 4x^2. It's like multiplying two terms with the same base, you just add the exponents because math said so. So, yeah, 2 times 2 is 4, and x times x is x^2, put them together and you get 4x^2. Easy peasy lemon squeezy.