Question

फाइव एक्स प्लस 7 ब्रैकेट थ्री एक्स प्लस 4 ​

Answer 1

According to question,

we have to solve the equation that is

$(5x + 7)(3x + 4) = 15 {x}^{2} + 20x + 21x + 28$

this will be the answer

Answer 2

Answer:

15x²+56x+28

Step-by-step explanation:

5x+7(3x+4)

5x(3x+ 7) +7(3x+7)

15x²+35x+21x+28

15x²+56x+28