i need help how do u do b power of 2 plus 2b plus 1
Answers
Answered by
0
(2+2b+1)^2
its in the form of (a+b+c)^2
we can use this formula
=> (a+b+c)^2 = a^2 +b^2 + c^2 +2ab +2bc +2ca
a= 2 ,b= 2b ,c=1
2^2 +(2b)^2 + 1^2 +2(2×2b) +2(2b×1) +2(1×2)
4 + 4b^2 + 1 + 2(4b) + 2(2b) + 2(2)
4 +4b^2 + 1 + 8b + 4b + 4
9 + 4b^2 + 12b +
4b^2 + 12b + 9
(2b)^2 + 2×2b×3 + (3)^2
its in the form of a^2 + 2ab + b^2 = (a+b)^2
a = 2b , b = 3
(2b+3)^2 is the answer
its in the form of (a+b+c)^2
we can use this formula
=> (a+b+c)^2 = a^2 +b^2 + c^2 +2ab +2bc +2ca
a= 2 ,b= 2b ,c=1
2^2 +(2b)^2 + 1^2 +2(2×2b) +2(2b×1) +2(1×2)
4 + 4b^2 + 1 + 2(4b) + 2(2b) + 2(2)
4 +4b^2 + 1 + 8b + 4b + 4
9 + 4b^2 + 12b +
4b^2 + 12b + 9
(2b)^2 + 2×2b×3 + (3)^2
its in the form of a^2 + 2ab + b^2 = (a+b)^2
a = 2b , b = 3
(2b+3)^2 is the answer
Similar questions