For Esercises 143-144, evaluate the espressiom wilthout the use of a calculator. 8.0 X 10 20 X 10 For Exercies 145-146, splify he expresion. 145. VV6 + VI + VV3 + VI6 + vỹ 1.44 X 10" 9.0 X 10" 143 144 146. VVI + VI3 + VVsi + VID00 + V36 + V

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