Factor the followingX^2+3x+2x^2+15x+50
2 answers:
Answer:
1)
2)
Step-by-step explanation:
You can factorize the quadratics equations by applying the proccedure shown below:
1)
Find two number whose sum is 3 and whose product is 2.
These would be 1 and 2.
Rewrite it as folowing:
2)
Find two number whose sum is 15 and whose product is 50.
These would be 5 and 10.
Therefore, you can rewrite it as folowing:
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Answer:
B
Step-by-step explanation:
Let y = f(x) and rearrange making x the subject
y = x² + 7 ( subtract 7 from both sides )
y - 7 = x² ( take the square root of both sides )
± = x
Change y back into terms of x, thus
(x) = ±