Math, asked by sammy4198, 5 hours ago

expand (i) (2x-5y-7z)²

Answers

Answered by gayenbanasree

1

Answer:

MARK BRAINLIEST PLEASSSSS

Attachments:

Answered by rajeebsc001

1

Soln:-

(2x-5y-7z)² = 4x²+25y²+49z²

-20xy +70yz-28xz

Formula :-

(a-b-c)² = a²+b²+c²-2ab+2bc-2ac

Expantion:-

(2x-5y-7z)² = (2x)²+(5y)²+(7z)²

-2(2x)(5y)+2(5y)(7z)-2(2x)(7z)

= 4x²+25y²+49z²

-20xy +70yz-28xz

Previous Question

Next Question

Similar questions

English, 3 hours ago

Please solve this problem?

Science, 3 hours ago

what are the muscles of the heart called?

Math, 3 hours ago

एक गृहस्थ एका पुस्तकाची २४ पाने दररोज वाचतो. त्याला संपुर्ण पुस्तक वाचण्यास ३६ दिवस लागतात. त्याने दररोज १८ पाने वाचण्याचे ठरविल्यास पुस्तक संपायला किती दिवस लागतील ? १) ३६ २) ४२ ३) ४८ ४) ५४...

Science, 5 hours ago

Name some animals which give wool...

Science, 5 hours ago

meaning of my name priyanshi...

Math, 7 months ago

[Q.10) From 50 students taking examinations in Mathematics, Physics and Chemistry, each of the student has passed in at least one of the subject, 37 passed Mathematics, 24 Physics and 43 Chemistry. At most 19 passed Mathematics and Physics, at most 29 Mathematics and Chemistry and at most 20 Physics and Chemistry. What is the largest possible number that could have passed all three examination?

English, 7 months ago

स्टोरी ऑफ प्रिंसेस एंड गोल्डन बॉल...

Science, 7 months ago

please send me answer...