Advertisements
Advertisements
प्रश्न
Evaluate: (2a + 3) (2a − 3) (4a2 + 9)
योग
Advertisements
उत्तर
(2a + 3) (2a − 3) (4a2 + 9)
= [(2a)2 − (3)2] (4a2 + 9) ...[(a + b) (a − b) = a2 − b2]
= (4a2 − 9) (4a2 + 9)
= (4a2)2 − (9)2 ...[(a + b) (a − b) = a2 − b2]
= 16a4 − 81
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 : (3x−4y) (3x+4y) (9x2+16y2)
Use the product (a + b) (a – b) = a2 – b2 to evaluate:
21 x 19
Evaluate: (6 – xy) (6 + xy)
Evaluate : (5x + 8y) (3x + 5y)
Evaluate : (7x + 15y) (5x − 4y)
Evaluate : (2a − 3b) (3a + 4b)
Evaluate: (a2 + 5) (a2 − 3)
Evaluate: (3a2 − 4b2) (8a2 − 3b2)
Evaluate: (a + bc) (a − bc) (a2 + b2c2)
