Question

If a= 3, b=-5 , c=-3, find a²+ b²+c²+ 2(ab + bc + ca ) .​

Answer 1

Answer:

Step-by-step explanation:

a= 3, b=-5 , c=-3

a²+ b²+c²+ 2(ab + bc + ca)

On putting the values we get -

9 + 25 + 9 + 2( -15 + 15 - 9)

= 43 + 2(-9)

= 43 -18

= 25

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Answer 2

Answer:

given ,a=3

b=(-5)

c=(-3)

find, a²+b²+c²+2(ab+bc+ca)

3²+(-5) ²+(-3) ²+2[{3x(-5)}+ {(-5) x(-3) }+{(-3) x(3) }]

9+25+9+2[{-15}+{15}+{-9}]

43+2[-9]

43-18

25

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