Question

calculati: (x+2);²(X-3)2;(-x3+1)²;(-a-2)²;(1-2x)²;(a2-3b)²;(3x+4y)²;

Answer 1

( x + 2 )² = x² + 4 x + 4 
( x - 3 )² = x² - 6 x + 9 
( x - 3 ) 2 = 2 x - 6 
( - x³ + 1 )²= x⁶ - 2 x³ + 1 
( - a - 2 )² = a² + 4 a + 4 
( 1 - 2 x )² = 1 - 4 x + 4 x²
( a²- 3 b) ² = a⁴ - 6 a² b + 9 b² 
( 2 a - 3 b )² = 4 a² - 12 a b + 9 b² 
( 3 x + 4 y )² = 9 x² + 24 x y + 16 y²