Question

please solve this all questions​

Answer 1

Answer:

x=2,y=1

I) 1/4(2(2)²-10(1)²)(2(2)²-10(1)²)

= 1/4(8-10)(8-10)

= 1/4(-2)(-2)

=1/4(4)

= 1

2) (2²+ 1²)(-2(2)²-2(1)²)

=(4+1)(-8-2)

=5(-10)

= -50

3) (2²-5)(2+5)+5

=(4-5)(7)+5

= (-1)(7)+5

= -7+5

= -2

4) 5(2)²+(5+7(1))(3-2(1))

= 20 + (12)(1)

= 20 + 12

=32

5) (2+1)(2(2)+1) + (2+2(1))(2-1)

= 3(5) + (4)(1)

=15 + 4

= 19

hope it will help you !!!!!

Answer 2

Answer:

Answer:

x=2,y=1

I) 1/4(2(2)²-10(1)²)(2(2)²-10(1)²)

= 1/4(8-10)(8-10)

= 1/4(-2)(-2)

=1/4(4)

= 1

2) (2²+ 1²)(-2(2)²-2(1)²)

=(4+1)(-8-2)

=5(-10)

= -50

3) (2²-5)(2+5)+5

=(4-5)(7)+5

= (-1)(7)+5

= -7+5

= -2

4) 5(2)²+(5+7(1))(3-2(1))

= 20 + (12)(1)

= 20 + 12

=32

5) (2+1)(2(2)+1) + (2+2(1))(2-1)

= 3(5) + (4)(1)

=15 + 4

= 19

hope it will help you !!!!!