Question

Como resolveu?
(a+1)(a+2)

Answer 1

ᴏʟᴀ⏩

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(a+1)(a+2)

a+a+2a+a+2

${a}^{2} + 2a + a + 2$

ʀᴇꜱᴘᴏꜱᴛᴀ:

$= {a}^{2} + 3a + 2$

ᴍᴜʟᴛɪᴘʟɪQᴜᴇ ᴄᴀᴅᴀ ᴛᴇʀᴍᴏ ᴅᴏꜱ ᴘʀɪᴍᴇɪʀᴏꜱ ᴘᴀʀᴇɴᴛᴇꜱᴇꜱ ᴘᴏʀ ᴄᴀᴅᴀ ᴛᴇʀᴍᴏ ᴅᴏꜱ ꜱᴇɢᴜɴᴅᴏꜱ ᴘᴀʀᴇɴᴛᴇꜱᴇꜱ.

a+a+2a+a+2

caulcule:

${a}^{2} + 2a + a + 2$

ᴄᴏʟᴏQᴜᴇ ᴏꜱ ᴛᴇʀᴍᴏꜱ ꜱɪᴍɪʟᴀʀᴇꜱ ᴇᴍ ᴇᴠɪᴅᴇɴᴄɪᴀ ᴇ ꜱᴏᴍᴇ ᴏꜱ ᴅᴇᴍᴀɪꜱ.

${a}^{2} + 3a + 2$

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ᴇꜱᴘᴇʀᴏ ᴛᴇʀ ᴀᴊᴜᴅᴀᴅᴏ♣♠