Q. What is the product of (1−p) and (21−p), all reduced by p ?Choose 1 answer:(A) 21(1−5p+2p2)(B) 21(2−5p+2p2)(C) 21(1−3p+2p2)(D) 21(2−3p+2p2)
Multiply Binomials: First, we need to multiply (1−p) by (21−p). This is a simple multiplication of two binomials.(1−p)×(21−p)=(1)(21)−(1)p−(p)(21)+(p)(p)
Simplify Expression: Now, we simplify the expression by combining like terms and performing the multiplication.(\(1-p) \times \left(\frac{1}{2}-p\right) = \frac{1}{2} - p - \frac{p}{2} + p^2
Combine Like Terms: Next, we combine the terms with p.21−p−2p+p2=21−(1+21)p+p2
Reduce Expression by p: Simplify the coefficients of p.21−(1+21)p+p2=21−23p+p2
Combine p Terms: Now, we need to reduce this expression by p, which means we subtract p from the entire expression.(21−23p+p2)−p=21−23p+p2−p
Factor Out 1/2: Combine the p terms.21−23p+p2−p=21−25p+p2
Compare with Answer Choices: Finally, we need to express the answer in the form of one of the given choices. We can factor out a 21 to match the answer choices.21−25p+p2=(21)(1−5p+2p2)
Compare with Answer Choices: Finally, we need to express the answer in the form of one of the given choices. We can factor out a 21 to match the answer choices.21−25p+p2=(21)(1−5p+2p2)Now, we compare our result with the given answer choices.Our result is (21)(1−5p+2p2), which matches answer choice (A).