Advertisements
Advertisements
प्रश्न
Evaluate : (7x + 15y) (5x − 4y)
बेरीज
Advertisements
उत्तर
(7x + 15y) (5x − 4y)
= 7x (5x − 4y) + 15y (5x − 4y)
= 35x2 − 28xy + 75xy − 60y2
= 35x2 + 47xy − 60y2
shaalaa.com
Product of Sum and Difference of Two Terms
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Evaluate : (a+1) (a-1) (a2+1)
Evaluate : (a+b) (a−b) (a2+b2)
Evaluate : (2a−b) (2a+b) (4a2+b2)
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
21 x 19
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
9.8 x 10.2
Evaluate: (6 – xy) (6 + xy)
Evaluate : `(7"x"+2/3"y")(7"x"-2/3"y")`
Evaluate : (9a − 7b) (3a − b)
Evaluate: (m + 3) (m − 3) (m2 + 9)
Evaluate: (a + bc) (a − bc) (a2 + b2c2)
