Iready algebra expressions with exponents evaluate the expression 2b’3+5 when b = 3 help

when you substitude 3 for b in (2b^3)+5 this should equal 23

Step-by-step explanation:

(2b^3) +5

(2(3)^3) +5

(2(9)) +5

(18) +5

⁷/₂₄

Step-by-step explanation:

Method 1:

Multiply numerators and denominators

⁷/₁₆ × ⁴/₃ × ½ = (7 × 4 × 1)/(16 × 3 ×2) = 28/96  

Divide numerator and denominator by highest common factor (4)

28/96 = ⁷/₂₄

Method 2—Cancellation

Cancel 4s

⁷/₁₆ × ⁴/₃ × ½ = ⁷/₄ × ⅓ × ½

Multiply numerators and denominators

⁷/₄ × ⅓ × ½ = ⁷/₂₄