Answer:
yes its 100% correct for me
Step-by-step explanation:
brainlest me po
hope it helps ッ
Answer(5r + 1)^2
= (5r + 1) × (5r + 1)
= 25r^2 + 5r + 5r + 1
= 25r^2 + 10r + 1
Therefore, (5r + 1)^2 = 25r^2 + 10r + 1.Alternate:if this is the problem:(5r+1)^2 (5r+1)^2 then:(a+b)^2 = a^2 + 2ab + b^2
Where a = 5r and b = 1.
we have
(5r+1)^2 = (5r)^2 + 2(5r)(1) + (1)^2
to square this expression again, we can use the same formula
(25r^2 + 10r + 1)^2 = (25r^2)^2 + 2(25r^2)(10r) + 2(25r^2)(1) + (10r)^2 + 2(10r)(1) + (1)^2
= 625r^4 + 500r^3 + 150r^2 + 20r + 1
the expanded expression is
(5r+1)^2 (5r+1)^2 = 625r^4 + 500r^3 + 150r^2 + 20r + 1
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Answers & Comments
Answer:
yes its 100% correct for me
Step-by-step explanation:
brainlest me po
hope it helps ッ
Answer
(5r + 1)^2
= (5r + 1) × (5r + 1)
= 25r^2 + 5r + 5r + 1
= 25r^2 + 10r + 1
Therefore, (5r + 1)^2 = 25r^2 + 10r + 1.
Alternate:
if this is the problem:
(5r+1)^2 (5r+1)^2
then:
(a+b)^2 = a^2 + 2ab + b^2
Where a = 5r and b = 1.
we have
(5r+1)^2 = (5r)^2 + 2(5r)(1) + (1)^2
= 25r^2 + 10r + 1
to square this expression again, we can use the same formula
(25r^2 + 10r + 1)^2 = (25r^2)^2 + 2(25r^2)(10r) + 2(25r^2)(1) + (10r)^2 + 2(10r)(1) + (1)^2
= 625r^4 + 500r^3 + 150r^2 + 20r + 1
the expanded expression is
(5r+1)^2 (5r+1)^2 = 625r^4 + 500r^3 + 150r^2 + 20r + 1