Question

What should be added to 1 + 2x - 3x2 to get x2 - x - 1?
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Answer 1

Answer:

According to the problem,

Let A should be added to1+2x−3x

2

to get result,

1+2x−3x

2

+A=x

2

−x−1

A=x

2

−x−1−(1+2x−3x

2

)

A=x

2

−x−1−1−2x+3x

2

A=4x

2

−3x−2

Therefore, 4x

2

−3x−2 added to the equation.

Step-by-step explanation:

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Answer 2

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Answer

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Let it be Y

So, Y + (1 + 2x - 3x2) = 2- x - 1

Y = x2 - × - 1 - 1 - 2x + 3x2

Y= 4x2 - 3x - 2

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I HOP IT WILL HELP YOU

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