Question A
(3x+5z)(7x-2z)
Question B
(5y-4z)(6y-7z)
Question C
(3y+2)(5y-8)
Question D
(5c-4d)(c+8d)
I have a couple more but I don't want to overwhelm anyone. I just can't get these right.
Question A
(3x+5z)(7x-2z)
Question B
(5y-4z)(6y-7z)
Question C
(3y+2)(5y-8)
Question D
(5c-4d)(c+8d)
I have a couple more but I don't want to overwhelm anyone. I just can't get these right.
Into Maths Amino? the community.
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Comments (3)
The answers and steps
[3x+5z][7x-2z]
[3x•7x]-[3x•2z]+[5z•7x]-[5z•2z]
That can be made into 21x^2-6xz+35xz-10z^2
Which can be further simplified to
21x^2+33xz-10z^2
[5y-4z][6y-7z]
[5y•6y]-[5y•7z]-[4z•6y]+[4z•7z]
This turns to
30y^2-35yz-24yz+28z^2
This is simplified to
30y^2-59yz+28z^2
Ah, multiplying binomials
Could you maybe send a picture of what you did so that we can point out the wrong step(s)