Question

guys plz help me with my question

plz give full method with explanation

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Answer 1

Answer:

Subtraction

$30p {}^{2} + 40q {}^{2} - 12pq - (72pq - 30q {}^{2} - 15p {}^{2} ) \\ = 30 p {}^{2} + 40q {}^{2} - 12 pq- 72pq + 30q {}^{2} + 15p {}^{2} \\ = 30p {}^{2} + 15p {}^{2} + 40q {}^{2} + 30q {}^{2} - 12pq - 72pq \\ = 45p {}^{2} + 70q {}^{2} - 84pq$

Answer 2

Answer:

45p^2 + 70q^2 - 84pq

Step-by-step explanation:

(30p^2 +40q^2 - 12pq)-(72pq - 30q^2 - 15p^2)

30p^2 +40q^2 - 12pq - 72pq +30q^2 +15p^2

45p^2 + 70q^2 - 84pq

hope it's help you