Question

It A = 3 g 2 + 3x -x² and B= 3x - x², then find A+B and A-B
please give me answer fast ​

Answer 1

SOLUTION

GIVEN

A = 392 + 3x -x² and B= 3x - x²

TO DETERMINE

The value of A + B and A - B

EVALUATION

Here it is given that

A = 392 + 3x -x² and B = 3x - x²

∴ A + B

= ( 392 + 3x -x²) + ( 3x - x² )

= 392 + 6x - 2x²

∴ A - B

= ( 392 + 3x -x²) - ( 3x - x² )

= ( 392 + 3x -x² - 3x + x² )

$= 392$

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