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(2x²-5y) (5x+2y²) : x=2, y=-1

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(2x²-5y) (5x+2y²) : x=2, y=-1

Posted by Vrinda Bansal 6 years, 10 months ago

CBSE > Class 07 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

Polynomial = (2x²-5y)(5x+2y²)

Values of x and y = 2 and 1 respectively

Solution :

Put x = 2 and y = 1

{2(2)²-5(1)}×{5(2)+2(1)²}

{2*4-5*1}×{5*2+2*1}

{8-5}{10+2}

{3}{12}

{36}

The required value of the polynomial is 36.

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CBSE > Class 07 > Mathematics