sederhanakanlah ke bentuk baku a. (5×10^2)×(3×10^2) b. (7,5×10^-3)×(4×10^5) c. (5,25×10^6)×(10^-12)

a. (5×10²) × (3×10²)
= 5×100 × 3×100
= 500 × 300
= 150000
= 15 × 10⁴
b. (7,5×10^-3) × (4×10^5)
= 7,5×1/10³ × 4×10^5
= 75×10^-1×10^-3 × 4×10^5
= (75×4) 10^-1+(-3)+5
= (300) 10¹
= 3000
= 3×10³
c. (5,25×10^6) × (10^-12)
= 525×10^-2×10^6 × 10^-12
= 525×10^-2+6+(-12)
= 525×10^-8