Question

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answer any if u know​

Answer 1

Answer:

5.

seven x whole square plus two y whole square minus 14xy

49x'2+2y'2-14xy

6.

100+3 whole cube

=1000000+729

1000729

plz follow these are your answers.

plz mark as the brainliest.✌✌✌

Answer 2

5) (7x - 2y)²

= (7x)² - (2y)² +2 x 7x x 2y

= 49x² - 4y² + 28xy

6) (103)³

= ( 100 + 3 )³

= (100)³ - 3ab ( a-b) - b

= 1000000 - 3 x 100 x 3 ( 100 - 3) - (3)³

= 1000000 - 300 x 3 ( 97 ) - 9

= 1000000 -900 ( 97 ) -9

= 1000000 - 87300 -9

= 1000000 - 87309

= 912619