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Verified Answer :

a + b 
= -10 + 4
= 4 - 10
= -6

ButtahBenzo

So it's -10+4
You always keep the highest numbers exponent in this case it would be a negative since 10 is larger than 4,
And when the numbers have opposite exponents you always subtract,
so your answer would be -6
Hope this helps!!!

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