Question

(x+3)(x+4)=......+......+.....=.... by using identity​

Answer 1

identity-

(x+a)(x+b) = x + (a+b)x + ab

(x+3)(x+4) = x + (3+4)x +3×4 = 8x + 12

x=12/8 = 1.5

Thus, the final answer is x = 1.5.

Answer 2

Answer:

(X+3) (X+4)=

$x { }^{2} + (3 + 4)x + 3 \times 4$

$x ^{2} + 7x + 12$