70² – 800 =
50² =
Uhuq²
Buat yg belum dapet
Gantian yaw 🙂
Q.
70² – 800
= 70×70 – 800
= 4.900 – 800
= 4.100
50²
= 50×50
= (5×5)00
= 2.500
70² – 800
= ( 70 × 70 ) – 800
= ( 7 × 7 × ( 100 )) – 800
= ( 49 × 100 ) – 800
= 4.900 – 800
= 4.100
~~
50²
= 50 × 50
= ( 5 × 5 ) × 100
= 25 × 100
= 2.500