Question

If under root 2 is equal to 1.414 find the value of (3 under root 32 -2under root 50 + 4under root 128 -20 under root 18 ?

Answer 1

Answer:

Step-by-step explanation:

3√32 - 2√50 +4√128 - 20√18

= 3√(2² ×2²×2) -2√(25×2) + 4√(64×2) -20√(9×2)

=3×2×2√2 - 2×5√2 +4×8√2 - 20×3√2

= (12×1.414) -(10×1.414) +(32×1.414) - (60×1.414)

= -36.764

hope it helps you.