Advertisements
Advertisements
प्रश्न
Evaluate : `(7"x"+2/3"y")(7"x"-2/3"y")`
योग
Advertisements
उत्तर
`(7"x"+2/3"y")(7"x"-2/3"y")`
`=7"x"(7"x"-2/3"y")+2/3"y"(7"x"-2/3"y")`
`=49"x"^2-14/3"xy"+14/3"xy"-4/9"y"^`
`=49"x"^2-4/9"y"^2`
shaalaa.com
Product of Sum and Difference of Two Terms
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Evaluate : (a+1) (a-1) (a2+1)
Evaluate : (2a−b) (2a+b) (4a2+b2)
Evaluate : (3x−4y) (3x+4y) (9x2+16y2)
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
33 x 27
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
7.7 x 8.3
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
4.6 x 5.4
Evaluate: (6 – xy) (6 + xy)
Evaluate : `(3"x"-1/(2"y"))(3"x"+1/(2"y"))`
Evaluate: (4x2 − 5y2) (4x2 + 5y2)
Evaluate: (a + bc) (a − bc) (a2 + b2c2)
