Question

identify the greater number in each of the following pair expand and multiply whenever necessary (-7)³ or (-3)⁷. ch 5 ( Exponents and power ). class 7​

Answer 1

Answer:

(i) (-7)^3 = (-7) × (-7) × (-7) = (-343)

(ii) (-3)^7 = (-3) × (-3) × (-3) × (-3) × (-3) × (-3) × (-3) = (-2187)

=> (-343) > (-2187)

Hence

${( - 7)}^{3} > {( - 3)}^{7}$

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