Question

Calculeaza: 8+5×[20+3×(2+4×6)-15]-3=? [150+12×8-(14×2-40÷4)]×10=?

Answer 1

  8+5x[20+3x(2+24)-15]-3
=8+5x(20+3x26-15)-3
=8+5x(20+78-15)-3
=8+5x(98-15)-3
=8+5x83-3
=8+415-3
=423-3
=420

  [150+96-(28-10)]x10
=(150+96-18)x10
=(246-18)x10
=228x10
=2280

Answer 2

prima: 8+5x(20+3x26-15)-3 = 8+5x(20+78-15)-3 = 8+5x83-3 = 8+415-3 = 420
a doua: [150+12x8-(28-10)]x10= (150+12x8-18)x10= (150+96-18)x10 = 228x10 = 2280