i ii y A (3x + 7) cm (2x + 1) cm B Show that the area of the shaded region in A is 6x² +17x+7 cm². Show that the area of the shaded region in B is x² +13x+64 cm². Use your answers in (i) and (ii) to show that 5x² + 4x-57 = 0. Hence find the dimensions of rectangle A. x cm 3 cm (x+8) cm

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04-12-2022
Mathematics

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i ii y A (3x + 7) cm (2x + 1) cm B Show that the area of the shaded region in A is 6x² +17x+7 cm². Show that the area of the shaded region in B is x² +13x+64 cm². Use your answers in (i) and (ii) to show that 5x² + 4x-57 = 0. Hence find the dimensions of rectangle A. x cm 3 cm (x+8) cm

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i ii y A (3x + 7) cm (2x + 1) cm B Show that the area of the shaded region in A is 6x² +17x+7 cm². Show that the area of the shaded region in B is x² +13x+64 cm². Use your answers in (i) and (ii) to show that 5x² + 4x-57 = 0. Hence find the dimensions of rectangle A. x cm 3 cm (x+8) cm​

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Other Questions

i ii y A (3x + 7) cm (2x + 1) cm B Show that the area of the shaded region in A is 6x² +17x+7 cm². Show that the area of the shaded region in B is x² +13x+64 cm². Use your answers in (i) and (ii) to show that 5x² + 4x-57 = 0. Hence find the dimensions of rectangle A. x cm 3 cm (x+8) cm