3 years ago

9. (3x + 4y)² – (3z) 2square

Mathematics

2 answers:

rodikova [14]3 years ago

5 0

Solution: (3x + 4y - 3z) x (3x + 4y + 3z)

S_A_V [24]3 years ago

4 0

Answer:

(3x + 4y - 3z)(3x + 4y + 3z)

Step-by-step explanation:

(3x + 4y)² - (3z)² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

Here a = 3x + 4y and b = 3z, then

(3x + 4y)² - (3z)²

= (3x + 4y - 3z)(3x + 4y + 3z) ← in factored form

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9. (3x + 4y)² – (3z) 2square​

9. (3x + 4y)² – (3z) 2square