Write the subtraction expression as an equivalent addition expression and then evaluate it.
1 answer:
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First we need to find a common denominator
=
now we can add them
+
=
now we can add them
Answer:
4x²+0x-7= 0
Step-by-step explanation:
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Answer:
a. 256
b. 255
Step-by-step explanation:
If a set has “n” elements, then the number of subset of the given set is and number of proper subset is
A = {3, 4, 5, 6, 7, 9, 10, 11}
Here, n = 8
No of subsets
No of proper subsets
=