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1. 4 * (-2.5) * 10 = -1002)4(4²) - 2(-6) + (-2.5) = 73.53)(2(-6))² - 4(10) + (4)² = 120

So the first thing we would do is expand the right side: so multiply everything in the bracket by 2 to open it up -so it would become 2m - 14.3m + 5 > 2m -14Then we move all the like terms to one side ...

3pq⁴ - 12q²p⁶ = 3(pq⁴-4q²p⁶) = 3p(q⁴-4q²p⁵) = 3pq²(q²-4p⁵)

120 g of sugar is required for 4 people
Therefore 120/4=30 g of sugar is required per person.
So 30x7=210 g of sugar is required to make a cake for 7 people.

a² + 2ab + b²