2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5
1 answer:
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Note: In option A, it should be "+" instead of "(".
Given:
The expression is
To find:
The equivalent expression.
Solution:
We have,
Using distributive property, we get
On combining like terms, we get
The expression is equivalent to the given expression.
Therefore, the correct option is A.