ABCD×9=DCBA(what is the value of A, B, C and D)
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Answer:
Step-by-step explanation:
It's already in a form that only ha positive exponents. Just to state it though you could rewrite it as or
The question asks for positive exponents though so yu don't need to do that.
You also need to know so in this case
so
Let's take a peek at the denominators first off, and do a "prime factoring" on them.
25 = 5 * 5
27 = 3 * 3 * 3
45 = 3 * 3 * 5
the numbers in bold are repeated there more than once among the factors, and therefore we'll use them once, so our LCD will be 5 * 5 * 3 * 3 * 3, or 675.
25 = 5 * 5
27 = 3 * 3 * 3
45 = 3 * 3 * 5
the numbers in bold are repeated there more than once among the factors, and therefore we'll use them once, so our LCD will be 5 * 5 * 3 * 3 * 3, or 675.