a+b =5 , value of a^2 + b^2 -10a - 10b +2ab+5
Answers
Answered by
24
a+b=5
a^2+b^2-10a-10b+2ab+5
=a^2+b^2+2ab-10a-10b+5
=(a+b)^2-5{2a+2b-1}
=5^2-5{2(a+b)-1}
=25-5(2×5-1)
=25-5×9
=25-45
= -20 Ans.
a^2+b^2-10a-10b+2ab+5
=a^2+b^2+2ab-10a-10b+5
=(a+b)^2-5{2a+2b-1}
=5^2-5{2(a+b)-1}
=25-5(2×5-1)
=25-5×9
=25-45
= -20 Ans.
AJWA:
thnks
mention not
i have posted another question
135x^2 +15y^2 -90xy
can you plzzz help me out
its vry urgent
15 {9x^2+y^2-6xy} =15{(3x)^2+y^2-2×3x×y}. =15(3x-y)^2 Ans.
thnks
Answered by
24
Answer:
Here is your answer...
Step-by-step explanation:
Attachments:
Similar questions