The questions is (r+10)square ??
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Answered by
0
r²+20r+100 is the right answer
nirmalsamannan:
Next time add info abt the formula too :-)
Answered by
2
identity=(a+b)²
(a+b)²=a²+b²+2×(a+b)
(r+10)²=
r²+10²+2×(r+10)
r²+20r+100
(a+b)²=a²+b²+2×(a+b)
(r+10)²=
r²+10²+2×(r+10)
r²+20r+100
mrk as best if u like
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