Solve x(x−5)+4(x−5)=0, for x.
2 answers:
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Answer:
y = a + b x + c .
Step-by-step explanation:
Also (How to do it!):
We can find the vertex of a quadratic equation with these steps:
Get the equation in the form y = ax2 + bx + c.
Calculate -b / 2a. This is the x-coordinate of the vertex.
To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y.
Step-by-step explanation:
-2u = 2i + 10j
V = 4i - 6j
(-2u).V = (2x4) - (10x-6)
= 8 - (-60)
= 68
