Question

multiply (3-x²) (5+x²) ​

Answer 1

Answer:

8x

Step-by-step explanation:

3-x2=x 5+x2=7x =x×7x=8x

Answer 2

$\huge\underline\frak\red{Question:-}$

Q. Multíplч (3-x²) (5+x²)

$\huge\underline\frak\red{Answer:-}$

$= (3 - {x}^{2} )(5 + {x}^{2} ) \\ = 3(5 + {x}^{2} ) - {x}^{2} (5 + {x}^{2} ) \\ = 15 + 3 {x}^{2} - 5 {x}^{2} - {x}^{4} \\ = - {x}^{4} - 2 {x}^{2} + 15 \\ = {x}^{4} + 2 {x}^{2} - 15$

Thαnk чσu ..☺✌