253,798 views
27 votes
27 votes
Evaluate the given expression for x = 5 and y=5. 6x2 + 7xy + 3y?​

User Ratan
by
2.7k points

2 Answers

22 votes
22 votes

Answer:

x = 12 y = 7

Explanation:

6x^2 + 7xy + 3y

6(5)^2+ 7(5) + 7(8)y

6(5+5)+25+35 + 7(8)-7y

60+25+35+ 56-7y

y - 5 = 120 + 35 - 5 (+49y)

sqrt 150 + sqrt 49

x = 12 y = 7

User Vskubriev
by
2.8k points
18 votes
18 votes

Explanation:

Given, x = 5

y = 5

= 6(5)^2 +7(5)(5) +3(5)

= 6(25)+7(25) +15

= 150+175 + 15

= 150 + 190

=340

User Dmitry Oleinik
by
2.7k points