Question

fine the value of k if (-2)k+1 × (-2)3=(-2)7​

Answer 1

Step-by-step explanation:

(-2)k+1×(-2)3=(-2)7

=> -2k-6= -14

=> -2k= -14+6

=> -2k = -8

=> k= -8/-2=4

Answer 2

(-2)k+1 × (-2)3=(-2)7

-2k + 1 x (-6) = -14

-2k -6 = -14

-2k = -14 + 6

-2k = -8

(minus sign will be cancelled)

k = 8/2

k = 4

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