Question

(4x-3)(2x+5) solve it frined​

Answer 1

Answer:

(4x-3)(2x+5)

4(2x+5)-3(2x+5)

8x+20-6x-15

8x-6x+20-15

2x+5

x=5/2

Answer 2

Answer:

[8x2 + 14x – 15]

Step-by-step explanation:

a – b) × (c + d) = a × (c + d) – b × (c + d) = (a × c + a × d) – (b × c + b × d)

= ac + ad – bc – bd

Let,

a= 4x, b= 3, c= 2x, d= 5

Now,

= 4x × (2x + 5) -3 × (2x + 5) = [(4x × 2x) + (4x × 5)] – [(3 × 2x) + (3 × 5)]

= [8x2 + 20x – 6x – 15]