Question

Pls answer fast with EXPLANATION i will surely mark as brainliast and thanks​

Answer 1

Answer:

wish that the answer will help you

Step-by-step explanation:

1))

Answer 2

Here are your answers my friend-:

4.(a) let the unknown number be 'p'

Therefore,

(x² + xy + y²) + (p) = (2x² + 3xy)

(p) = (2x² + 3xy) - (x² + xy + y²)

(p) = x² + 2xy - y²

Therefore,

(x² + 2xy - y²) must be added to (x² + xy + y²) to obtain (2x² + 3xy)

4.(b) Let the unknown number be 'p'

Therefore,

(2a + 8b + 10) - (p) = (-3a - 7b + 16)

-(p) = (-3a - 7b + 16) - (2a + 8b + 10)

(-p) = (-5a - 15b + 6)

By multiplying -1 on both the sides to obtain the value of 'p' -:

-1 × (-p) = -1 × (-5a - 15b + 6)

p = 5a + 15b - 6

Therefore, 5a + 15b - 6 must be subtracted from (2a + 8b + 10) to obtain (-3a - 7b + 16)

5. In this question the words 'taken away' means subtracted just like question 4.(a). This was just to explain you the question no need to write it. Following is your answer -:

Let the unknown number be 'p'

Therefore,

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

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

(-p) = (-4x² + 3y² + xy)

By multiplying -1 on both the sides to obtain the value of 'p' -:

-1 × (-p) = -1 × (-4x² + 3y² + xy)

(p) = 4x² - 3y² - xy

Therefore, 4x² - 3y² - xy must be subtracted from (3x² - 4y² + 5xy + 20) to obtain(-x² - y² + 6xy + 20)

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Point to be noticed -:

• I have taken 'p' as a variable. You may take any variable other than 'x' and 'y' because they are already used in the equation.