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Which of the following methods would be the easiest to use to solve 2x2 + 4x – 3 = 0?
A.
factoring
B.
isolating the x2 term and finding the square root of both sides
C.
using the quadratic formula
D.
all three methods would be easy and effective
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OpenStudy (anonymous):
c or a
OpenStudy (anonymous):
it depand in which method you are better
OpenStudy (anonymous):
I believe the answer is:
C) using the quadratic formula.
OpenStudy (anonymous):
can you help me with more plz?
OpenStudy (anonymous):
yes i will try
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OpenStudy (anonymous):
Which of the following methods would be the easiest to use to solve x2 + 5x – 6 = 0?
A.
all three methods would be easy and effective
B.
using the quadratic formula
C.
isolating the x2 term and finding the square root of both sides
D.
factoring
OpenStudy (anonymous):
C.
isolating the x2 term and finding the square root of both sides
OpenStudy (anonymous):
d it is easy to factirise and it may take time to solve by formula
OpenStudy (anonymous):
ummmm not sure which one
OpenStudy (anonymous):
Solve.
x2 + 4x = 0
A.
{0, –4}
B.
{–4, 0, 4}
C.
{0, –16}
D.
{0, 4}
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OpenStudy (anonymous):
i think A.
OpenStudy (anonymous):
a
OpenStudy (anonymous):
Yep, A.
OpenStudy (anonymous):
Louis is planning to mow a rectangular yard that is 20 feet longer than it wide. He wants to find its width if its area is 1125 square feet. Which equation models this problem?
A.
20w2 = 1125
B.
w2 + 20w = 1125
C.
w2 – 20w = 1125
D.
w + 20w = 1125
Last one
OpenStudy (anonymous):
b
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OpenStudy (anonymous):
why
OpenStudy (anonymous):
@Moerdred is he right
OpenStudy (anonymous):
i will explain
OpenStudy (anonymous):
let w is width ok
OpenStudy (anonymous):
so length is 20 + w
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