Question

please answer my questions​

Answer 1

Q8 Ans :

$= ( - 2) {}^{3} - (2) {}^{3} \\ = - 8 - 8 = - 16$

Q9 Ans :

(a)

$( - 2) {}^{5} \times ( - 2) {}^{3} = ( - 2) {}^{8} \\ - 2 {}^{5 + 3} = - 2 {}^{8} \\ - 2 {}^{8} = - 2 {}^{8}$

If the base are same , the power must be added

(d)

$6 {}^{5} \times 6 {}^{4} = 6 {}^{9} \\ 6 {}^{5 + 4} = 6 {}^{9 } \\ 6 {}^{9} = 6 {}^{9}$

(c)

$5 {}^{2} - 3 {}^{2} = 4 {}^{2} \\ 25 - 9 = 4 {}^{2} \\ 16 = {4}^{2} \\ 4 {}^{2} = 4 {}^{2}$

(d)

$12 {}^{2} + 5 {}^{2} = 13 {}^{2} \\ 144 + 25 = 13 {}^{2} \\ 169 = 13 {}^{2} \\ 13 \times 13 = 13 {}^{2} \\ 13 {}^{2} = 13 {}^{2}$

Answer 2

Answer:

a).(-2)⁵×(-2)³=(-2)⁸

(-2)⁸=(-2)⁸

20thanks =inbox

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