Thi Lan Pham
E) (7⁵+7⁹).(5⁴+5⁶).(3³.3-9²) = (7⁵+7⁹).(5⁴+5⁶).(3⁴-3⁴) =(7⁵+7⁹).(5⁴+5⁶).0 =0