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5,6,7 pls help.
Factorise this pls

Step-by-step explanation:

5. -3x^(2)+3xy-4xz

If you factor = -x(3x-3y+4z)

x^yz+xy^2z+xyz^2

xyz(x+y+z)

x^2y-xy^2+x^2y^2

xy(x-y+xy)

6. 14a^2-28a^2b^2+21a^4

-7a^2(4b^2-3a^2-2)

7. a^4b-6a^2b^2+3ab^3

ab(a^3-6ab+3b^2)

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .