Question

$(2p + q + 5) {}^{2}$
solve this problem

​

Answer 1

Answer:

4p^{2} +q^{2} +25+4pq+10q+20p

Step-by-step explanation:

$(a+b+c)^{2} =a^{2} +b^{2} +c^{2} +2ab+2bc+2ca$

$(2p+q+5)^{2} =(2p)^{2} +q^{2} +5^{2} +2(2p)q+2(q)5+2(2p)5\\= 4p^{2} +q^{2} +25+4pq+10q+20p$