Advertisements
Advertisements
प्रश्न
Use the direct method to evaluate the following products:
(a – 8) (a + 2)
योग
Advertisements
उत्तर
Step 1: Multiply each term in the first bracket by each term in the second bracket
= a(a + 2) − 8(a + 2)
Step 2: Simplify each multiplication
= (a2 + 2a) − (8a + 16)
Step 3: Combine like terms
= a2 + 2a − 8a − 16
= a2 − 6a − 16
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Find the cube of the following binomials expression :
\[4 - \frac{1}{3x}\]
Evaluate of the following:
933 − 1073
If \[x + \frac{1}{x}\] 4, then \[x^4 + \frac{1}{x^4} =\]
Evaluate: (2 − z) (15 − z)
Evaluate: `(2"x"-3/5)(2"x"+3/5)`
Evaluate: (1.6x + 0.7y) (1.6x − 0.7y)
Expand the following:
(m + 8) (m - 7)
If `"a" - 1/"a" = 10`; find `"a"^2 - 1/"a"^2`
Simplify:
(4x + 5y)2 + (4x - 5y)2
If a + b + c = 9 and ab + bc + ca = 26, find a2 + b2 + c2.
