I need help please
1 answer:
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Answer:here ya go boys
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let that number be . We can build an equation, and solve for
.
less than half of
is
.
more than
is
.
We are given that the two quantities are equal, so we have that .
Adding to both sides gives
.
Multiplying both sides by gives
.
Subtracting from both sides gives
.
Multiplying both sides by gives
.
So, the number is and we're done!
The check is left as an exercise to the reader.
Answer:
A.
Step-by-step explanation:
1) to rewrite the given equation:
f(x)=2(x²+4x)-3; ⇔ f(x)=2(x²+4x+4)-3-8; ⇔ f(x)=2(x²+4x+4)-11; ⇔ f(x)=2(x+2)²-11;
2) the roots are:
3) finally, the correct answer is A.