Question

Expand (m+2)(m-1)= m2+m​

Answer 1

Formula for finding (m+2) square - (m-1) square

msq+4 - msq -1

m+3 answer

Answer 2

Solution :-

Expanding the LHS part we get,

→ (m + 2)(m - 1) = m² + m

→ m(m - 1) + 2(m - 2) = m² + m

→ m * m - 1 * m + 2 * m - 2 * 2 = m² + m

→ m² - m + 2m - 4 = m² + m

→ m² + m - 4 = m² + m

→ m² - m² + m - m - 4 = 0

→ (-4) = 0

but ,

→ (-4) ≠ 0 .

So, Please write question properly .

Let us say if question was :- Expand :- (m + 2)(m - 1)(m² + m) .

then,

→ (m + 2)(m - 1)(m² + m) .

→ (m² + 2m - 4)(m² + m)

→ m⁴ + m³ + 2m³ + 2m² - 4m² - 4m

→ (m⁴ + 3m³ - 2m² - 4m) .

Learn more :-

solution of x minus Y is equal to 1 and 2 X + Y is equal to 8 by cross multiplication method

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