find the
Product
(i) (2x + 5) (4x -3)
(ii) (t + s^2) (t ^2+s)
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Step-by-step explanation:
(1) (2x + 5) (4x - 3)
= 2x × 4x - 2x × 3 + 5 × 4x - 5 × 3
= 8x ^2 - 6x + 20x - 15
= 8x ^2 +14x - 15
2) (t + s^2) (t ^2 + s )
= t × t^2 + t × s + s^2 × t^2 + s^2 × s
= t^3 + st + s^2 t^2 + s^3
= s^3 + t^3 + s^2 t^2 + st
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