Answer:
Rectangle B
Step-by-step explanation:
Given the expression x^2+7x+6, to get the required rectangle we need to factorize first;
= x^2+7x+6
= x^2+6x+x+6
= x(x+6) + 1 (x+6)
= (x+1)(x+6)
From line 2 we will see that the terms contains x², 6x, x and 6. The rectangle that contains all this terms is rectangle B. Hence option B is correct.
