x2 - 4x + 3 = 0 factors to (x - 1)(x - 3)
x = 1, 3
If you can't see this just by looking at it, recall the quadratic formula (remember this, it is so useful):-
The solutions for x of (ax^2 + bx + c = 0) are
( -b ± sqrt (b^2 - 4ac) ) / 2a
Try plugging in the values of a, b and c from the equation above, you will find the solutions for x.
To solve the expression -3 plus -1 plus 0 plus 1 plus 3, we can combine the numbers step by step. First, -3 plus -1 equals -4. Then, adding 0 does not change the value, so we still have -4. Next, -4 plus 1 equals -3, and finally, -3 plus 3 equals 0. Therefore, the final result is 0.
(0, -3)
3 + -3
3 + 0 = 3
a = 3 and y = 0
(0, -3)
3 + -3
3 + 0 = 3
a = 3 and y = 0
Zero
x = 0
Oh, dude, it's like so simple. 0 plus 3 equals 3. I mean, come on, even a potato could figure that one out.
2x^2 + 8x + 3 = 0
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.
(2x + 1)(x + 3) = 0; x = -0.5 or -3
(1, 0)
(-1, 0)