0.4√0 = 028+5√252 = 28+5(√36)(√7) = 28+5(6)(√7) = 28+30√7-1.2√175 = -1.2(√25)(√7) = -1.2(5)(√7) = -6√7
Therefore, the expression simplifies to:0 + 28+30√7 - 6√7 = 28+24√7.
0.4√0 = 0
28+5√252 = 28+5(√36)(√7) = 28+5(6)(√7) = 28+30√7
-1.2√175 = -1.2(√25)(√7) = -1.2(5)(√7) = -6√7
Therefore, the expression simplifies to:
0 + 28+30√7 - 6√7 = 28+24√7.