Question

a) 7 elevado a 9 × 7 elevado a -6=

b) x elevado a 6/ x elevado a -2​

Answer 1

$\Large\boxed{\boxed{\boxed{{Ola\´\ }}}}}$

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a)

$\sf {7}^{9} \times {7}^{ - 6} \\ \sf {7}^{9 - 6} \\ \large\boxed{{\sf \green{7}^{ \green3}{}}}$

Ou,

• $\sf{7}^{3} = 7 \times 7 \times 7 = \large\boxed{{\sf \green3 \green4 \green3{}}}$

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b)

$\sf {x}^{6} \div {x}^{ - 2} \\ \sf {x}^{6 + 2} \\ \large\boxed{{\sf \green {x}^{\green8} {}}}$