Question

evaluate
(-3a + 5b)²​

Answer 1

Answer:

hyy mate. here is your answer

$( - 3 {a} + 5 {b})^{2} \\ {(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab \\ = {( - 3a)}^{2} + {(5b)}^{2} + 2 \times ( - 3a) \times(5b) \\ = 9 {a}^{2} + 25{b}^{2} - 30ab$

Hope it will help you....

Thanks for asking....

Answer 2

Step-by-step explanation:

(-3a+5b)²=9a²-30ab+25b²