Question

Multiply:- 5x²-6x+9 and 2x-3​

Answer 1

Answer:

In multiplication of algebraic expression before taking up the product of algebraic expressions, let us look at two simple rules.

(i) The product of two factors with like signs is positive, and the product of two factors with unlike signs is negative.

(ii) if x is a variable and m, n are positive integers, then

(xᵐ × xⁿ) = xm+n

Thus, (x³ × x⁵) = x⁸, (x⁶ + x⁴) = x6+4 = x10, etc.

Answer 2

Answer:

Simplify (3x2 – 9x + 5)(2x2 + 4x – 7). I'll take my time, and do my work neatly: 3x^2 – 9x + 5 is over 2x^2 + 4x – 7. 6x4 – 6x3 – 47x2 + 83x – 35 ...