Find the product.
(i) (5 – 2x) (3 + x)
Answers
Answered by
0
Step-by-step explanation:
Evaluate \sf \{ ({ \frac{1}{4}) }^{ - 1} - {( \frac{1}{5}) }^{ - 1} \}^{ - 1}{(
4
1
)
−1
−(
5
1
)
−1
}
−1
Answer:-
\mapsto↦ The answer is -1
Solution:-
\sf \{ ({ \frac{1}{4}) }^{ - 1} - {( \frac{1}{5}) }^{ - 1} \}^{ - 1}{(
4
1
)
−1
−(
5
1
)
−1
}
−1
\sf = \{4 - 5 \}^{ - 1}={4−5}
−1
\sf = { - 1}^{ - 1}=−1
−1
\sf = - 1=−1
Formulae Used:-
\sf \mapsto {a}^{ - b} = \frac{1}{ {a}^{b} }↦a
−b
=
a
b
1
Answered by
1
Answer:
(5−2x)(3+x)=5(3+x)−2x(3+x)
=15+5x−6x−2x
2
=−2x
2
−x+15
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