2.identify which is the square of (2a–3b+1)
a.4a²+8b+12ab+4a–6b
b.a²+16ab+12ab+4a–6b
c.a²+9b²+1–12ab+4a–6b
3.Look for the product of (b–9)(b+9)
a.b²–18
b.b²–81
c.9b²–18
9b²–81
4.if we multiply (11–2c)(11+c),what is their product?
a.11–4c²
b.121–4c²
c.9c²–128
d.121c²–4
5.by getting the cube of (a–2c),which of the following displays the correct product of it?
a.11–4c²+12ac²–8c³
b.12ac²–8c³+121–4c²
c.a³–6a²c+12ac²–8c³
d.121c²–+12ac²–8c³​