Question

(x+5)(x+6)‐ ( x‐3)(x+7)
​

Answer 1

Answer:

x(x+6)+5(x+6)-{x(x+7)-3(x+7)}

x^2+6x+5x+30-{x^2+7x-3x-21}

x^2+11x+30-{x^2+4x-21}

x^2+11x+30-x^2-4x+21

7x+51