Odpowiedź:
6.
a) 5² - 4² = 25 - 16 = 9 lub 5² - 4² = ( 5 - 4)*(5 + 4) = 1*9 = 9
b) ( 3 + 4)² = 7² = 49 lub (3 + 4)² = 3² + 2*3*4 + 4² = 9 + 24 + 16 = 49
c ) 3^4 - ( -3)^4 = 3^4 - 3^4 = 0
d) 2^4*( - 4)² + 5^0 = 16*16 + 1 = 256 + 1 = 257
e) 3*2^4 = 3* 16 = 48
f ) 2^5 - 5^2 = 32 - 25 = 7
z.7
(-3)³ = - 27, - 9 = - 3², (-3)² = 9, 27 = 3³
z.8
a) 126 = 2*63 = 2*7*9 = 2*7*3²
b) 225 = 15*15 = 3*5*3*5 = 3²* 5²
c) 200 = 2*10*10 = 2*2*5*2*5 = 2³ *5²
d) 980 = 2*490 = 2*49 *10 = 2*7² * 2*5 = 2²*5*7²
Szczegółowe wyjaśnienie:
