Advertisements
Advertisements
Question
Evaluate: (a + 5)(3a - 2)(5a + 1)
Sum
Advertisements
Solution
(a + 5)(3a - 2)(5a + 1)
= {a (3a - 2) + 5(3a - 2)} (5a + 1)
= (3a2 - 2a + 15a - 10)(5a + 1)
= (3a2 + 13a - 10)(5a + 1)
= 5a (3a2 + 13a - 10) + 1 (3a2 + 13a - 10)
= 15a3 + 65a2 - 50a + 3a2 + 13a - 10
= 15a3 + 68a2 - 37a - 10
shaalaa.com
Performs Operations (Addition and Subtraction) on Algebraic Expressions with Integral Coefficients Only.
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Simplify: - 2m + 5 + 4(m - 3)
Simplify: 2(x - y) - (x - 8)
Multiply: 3x, 5x2y and 2y
Multiply: - 3m2n + 5mn - 4mn2 and 6m2n
Copy and complete the following multi-plication:
9x + 5y
× - 3xy
Multiply: 2mnpq, 4mnpq and 5 mnpq
Simplify: `"a"/10+"2a"/5`
Simplify: `"2x"/5 + "3x"/4 - "3x"/5`
Simplify: `"x" + "x"/2 + "x"/3`
Simplify: `("y"/6 + "2y"/3) div ("y" + ("2y" - 1)/3)`
