3 years ago

Find all solutions to 4x^2 + 2x -2 = 1?

Mathematics

2 answers:

lakkis [162]3 years ago

8 0

Answer:

The answer is B

Step-by-step explanation:

Move the constant to the left, 4x^2+2x-2-1=0

Calculate the difference, 4x^2+2x-3=0

then solve using quadratic equation (must too difficult to type out)

Furkat [3]3 years ago

5 0

Answer:

=−1±1 3√4

Step-by-step explanation:

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Kisachek [45]

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4 years ago

Mom drove 180 miles from home to the hotel in 3 hours how many miles did she drive per hour

Lorico [155]

Answer:

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Step-by-step explanation:

<u>Given that,</u>

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3 years ago

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3 years ago

Kenny had 5/7 more trading cards than lee. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee.

svp [43]

Answer:

Step-by-step explanation:

Let X is the number of cards Kenny has

Let Y is the number of cards Lee has

1. Kenny had 5/7 more trading cards than lee, it means

X = Y + 5/7X (1)

2. After Kenny collected 50% more trading cards, he had 220 more trading cards than lee, it means:

X + 50%X = Y + 220 (2)

So, we solve the 2 equations to find out X and Y

$\left \{ {{X=Y + 5/7X} \atop {1.5X=Y +220}} \right.$

<=> X = $\frac{3080}{17}$ and Y = $\frac{880}{17}$

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3 years ago