a = ( - 3 x + 4) ( x +2) + ( 5 x + 1) ( x - 2) a = - 3 x² - 6 x + 4 x + 8 + 5 x² - 10 x + x - 2 a = 2 x² - 11 x + 6
b = ( 2 x +5) ( - x +2) - ( x -3) ( - 3 x + 4) b = - 2 x² + 4 x - 5 x + 10 - ( - 3 x² + 4 x + 9 x - 12) b = - 2 x² - x + 10 + 3 x² - 4 x - 9 x + 12 b = x² - 14 x + 22
( x - 3)² - ( x -1) ( x - 2) x² - 6 x + 9 - ( x² - 2 x - x + 2) x² - 6 x + 9 - x² + 2 x + x - 2 - 3 x + 7
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Verified answer
Bonjoura = ( - 3 x + 4) ( x +2) + ( 5 x + 1) ( x - 2)
a = - 3 x² - 6 x + 4 x + 8 + 5 x² - 10 x + x - 2
a = 2 x² - 11 x + 6
b = ( 2 x +5) ( - x +2) - ( x -3) ( - 3 x + 4)
b = - 2 x² + 4 x - 5 x + 10 - ( - 3 x² + 4 x + 9 x - 12)
b = - 2 x² - x + 10 + 3 x² - 4 x - 9 x + 12
b = x² - 14 x + 22
( x - 3)² - ( x -1) ( x - 2)
x² - 6 x + 9 - ( x² - 2 x - x + 2)
x² - 6 x + 9 - x² + 2 x + x - 2
- 3 x + 7
99 997 ² - 99 999 x 99 998
( 100 000 - 3 )² - ( 100 000 - 1) ( 100 000 - 2)
100 000² - 600 000 + 9 - ( 100 000 ² - 200 000 - 100 000 + 2)
10 000 000 000 - 600 000 + 9 - 10 000 000 000 - 200 000 - 100 000 + 2
= - 800 000 + 11 = - 799 989
a = 25 - 30 x + 9 x² - ( 14 - 7 x²)
a = 9 x² - 30 x + 25 - 14 + 7 x²
a = 16 x² - 30 x + 11
b = 16 x² - 1 - 30 x + 12
b = 16 x² - 30 x + 11