Question

if p=4 and q=1,then find the value of 2p square -3p square q square +pq square -4q cube please explain step by step ​

Answer 1

$\large\sf\underline{Given\::}$

Value of :

• p = 4

• q = 1

Expression :

• $\sf\:2p^{2}-3p^{2}q^{2}+pq^{2}-4q^{3}$

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$\large\sf\underline{To find\::}$

• Value of the given expression

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$\large\sf\underline{Solution\::}$

$\sf\:2p^{2}-3p^{2}q^{2}+pq^{2}-4q^{3}$

• Substituting the value of p as 4 and q as 1 .

$\sf\implies\:2(4)^{2}-3(4)^{2}(1)^{2}+4 \times (1)^{2}-4(1)^{3}$

• Taking the numbers out of their square and cubic form

$\sf\implies\:2 \times 16-3 \times 16 \times 1+4 \times 1-4 \times 1$

• Multiplying the numbers

$\sf\implies\:32-48 \times 1+4-4$

$\sf\implies\:32-48+4-4$

• Arranging +ve and -ve numbers

$\sf\implies\:32+4-48-4$

• Proceeding with addition and subtraction

$\sf\implies\:36-48-4$

$\sf\implies\:-12-4$

$\small{\underline{\boxed{\mathrm\red{\implies\:-16}}}}$ ★

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!! Hope it helps !!