Answer:
=(x-3)(x+7)
Step-by-step explanation:
To factor the trimonial:
, we follow these steps:
Step 1: Multiply the first and last term

Step 2: List out product factors of the term derived above

Step 3: Determine which of the factors sum up to the middle term 4x
The required product is: -3 and 7
Therefore: -3x+7x=4x
Step 4: Replace the middle term by the expression derived in step 3 and factorize.

Im pretty sure it can. 20 +20 = 40. if that helps...
A = 1/2 bh = 1/2 (3)(4) = 12/2 = 6
answer is B. 6 square units
Answer: 23 + 9 = 32
Step-by-step explanation: