Advertisements
Advertisements
प्रश्न
Find the product of 5x − 6y − 7z and 2x + 3y z
योग
उत्तर
(5x − 6y − 7z) × (2x + 3y + z)
= 2x × (5x − 6y − 7z) + 3y × (5x − 6y − 7z) + z (5x − 6y − 7z)
= 10x2 − 12xy − 14xz + 15xy − 18y2 − 21yz + 5xz − 6yz − 7z2
= 10x2 − 12xy + 15xy − 14xz + 5xz − 18y2 − 21yz − 6yz − 7z2
= 10x2 + 3xy − 9xz − 18y2 − 21yz − 7z2
shaalaa.com
Concept for Unknowns Through Examples with Simple Contexts (Single Operations)
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Multiply:
2xy − 5by by 4bx
Multiply:
2xyz + 3xy and − 2y2z
Multiply:
x + 5 and x – 3
Multiply:
4abc − 5a2bc − 6ab2c and − 2abc2
Find the product of a + b − c and 2a − 3b
Simplify:
20xy ÷ − 5xy
Divide:
− 15p6q8 by − 5p6q7
Divide:
20x3a6 by 5xy
Divide:
`(2"a"^2)/(9"b"^2)` by `(3"b")/(2"a")`
Simplify:
`(-15"m"^5"n"^2)/(-3"m"^5)`
