Question

simplify 8 root 3 minus 3 root 28 - 5 root 7​

Answer 1

Answer:it should be 8√3-√7

Step-by-step explanation:8√3-3√28-5√7

8√3-3√2*2*7-5√7

8√3-6√7-5√7

8√3-√7(6-5) {sign get changed}

8√3-√7

Answer 2

Answer:

8×(3)^1/2-3×(2×7×2)^1/2-5(7)^1/2=8×(3)^1/2-(7)^1/2(3×2-5)=8root3-root7=8(1. 9)-(2. 5)=15. 2-2. 5=12. 7(approx)