Question

Factorise the expression 5x + 4x - 57.
b The shaded regions in diagrams A (a rectangle) and B (a square with a section cut out) are equal in area.
A
(2x + 1) cm
(3x + 7) cm
(X + 8) cm
i
Show that the area of the shaded region in A is 6x +17x +7 cm?.
Show that the area of the shaded region in B is x +13x+64 cm.
Use your answers in (i) and (ii) to show that 5x + 4x-57 = 0.
Hence find the dimensions of rectangle A.
iii
iy​

Answer 1

Answer:

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