Question

class 7th chapter - algebraic expressions sum (4x-3)x(2x+5)​

Answer 1

8x^2-6x+20x-15

8x^2+14x-15

Answer 2

$\huge\mathsf\color{indigo}{Question:}$

$\sf Solve : \: (4x - 3) \times (2x + 5)$

$\huge\mathsf\color{indigo}{Answer:}$

$\sf (4x - 3) \times (2x + 5) \\ \sf = (4x \: \times \: 2x) + (4x \: \times \: 5) + ( - 3 \times 2x) + ( - 3 \times 5) \\ \sf = 8x^{2} + 20x + ( - 6x) + ( - 15) \\ \sf = \underline{\underline{8x^{2} + 14x - 15}}$

$\huge\mathsf\color{indigo}{Hope~it~helps..!!}$