Question

- An expression is taken away from 3x2 - 4y2 + 5xy + 20 to obtain x2 - y2 + 6xy + 20, then the expression is 22 5,2 +20

please answer my question
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Answer 1

Answer:

Solution:

We will be using the concept of addition and subtraction of algebraic expressions to solve the given question.

Let us assume the missing part as X.

Therefore according to the question,

(3x2 - 4y2 + 5xy + 20) - (X) = - x2 - y2 + 6xy + 20

Let us shift the terms to find the value of X

X = 3x2 - 4y2 + 5xy + 20 - (- x2 - y2 + 6xy + 20)

X = 3x2 - 4y2 + 5xy + 20 + x2 + y2 - 6xy - 20

X = 4x2 - 3y2 - xy

Thus, the expression that should be subtracted is 4x2 - 3y2 - xy.