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Vesna [10]
3 years ago
12

X=-4a^2+3ab+12b^2 Y=9a^2+ab-7b^2 Y+X=Need HELP NOW PLEASE​

Mathematics
1 answer:
Novay_Z [31]3 years ago
4 0
Step 1. (((0-(4•(a2)))+3ab)+(12•(b2)))+(((9•(a2))+ab)-7b2)
step 2. (((0-(4•(a2)))+3ab)+(12•(b2)))+((32a2+ab)-7b2)
step 3.(((0-(4•(a2)))+3ab)+(22•3b2))+(9a2+ab-7b2)
step 4. (((0-(4•(a2)))+3ab)+(22•3b2))+(9a2+ab-7b2)
step 5. 5.1 Factoring 5a2 + 4ab + 5b2
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