Question

ᴘᴏʀғɪs ʟᴏ ɴᴇsᴇsɪᴛᴏ ʀᴀᴘɪᴅᴏ
$resolver \: (x - 7)^{2}$
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Answer 1

ojala te ayude

(x_7)^2=x^2-2×7+7^2

=×^2-14+49