Advertisements
Advertisements
प्रश्न
Use the direct method to evaluate the following products:
(5a + 16) (3a – 7)
बेरीज
Advertisements
उत्तर
(5a + 16) (3a – 7)
= (5a × 3a) + (5a × −7) + (16 × 3a) + 16 × (−7)
= (15a2) + (−35a) + 48a + (−112)
= 15a2 − 35a + 48a − 112
= 15a2 + 13a − 112
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Simplify the following:
322 x 322 - 2 x 322 x 22 + 22 x 22
If \[x - \frac{1}{x} = 7\], find the value of \[x^3 - \frac{1}{x^3}\].
Simplify of the following:
\[\left( x + \frac{2}{x} \right)^3 + \left( x - \frac{2}{x} \right)^3\]
Evaluate:
\[\left( \frac{1}{2} \right)^3 + \left( \frac{1}{3} \right)^3 - \left( \frac{5}{6} \right)^3\]
Use the direct method to evaluate the following products:
(x + 8)(x + 3)
Expand the following:
(x - 5) (x - 4)
If `"a" - 1/"a" = 10;` find `"a" + 1/"a"`
If a2 - 3a - 1 = 0 and a ≠ 0, find : `"a"^2 - (1)/"a"^2`
Using suitable identity, evaluate the following:
9992
Find the following product:
(x2 – 1)(x4 + x2 + 1)
